Original array: [ 10. 0 1 2 3 4 5 6 7 8 9 10 11 0.35399976 0.99469633 0.0694458 0.54711478] Why is this usage of "I've to work" so awkward? Write a NumPy program to test whether each element of a 1-D array is also present in a second array. 1.]]] [1 1 0 0 0 0 2 1 2 0] - - - - - - - - - - - - - - - - - 990. [0 0 0 0 1 1 1 1]] [2 3] 10. When we apply this property on the pandas DataFrame object it returns a boolean value i.e True or False depending on the condition if the concerned DataFrame object is empty or not. [[ 5 6] Data type of the array x is: int32 [ 4 5 6 7] [27 28 29 30 31 32 33 34 35]] Concatenating the said two arrays: Go to the editor 1. 3. Click me to see the sample solution, 44. [ 10. Go to the editor 2. 5. nan] [ 2. 7.]] Expected Output: Extracted data: First row Nice question. 30. Sample Output: [1, 2, 3, 4] [30 31 32]] [20 20 20 0]] [[0.54420704 0.35710194 0.79167579 0.72249474] Not the answer you're looking for? Write a NumPy program to create a 1-D array of 20 element spaced evenly on a log scale between 2. and 5., exclusive. Original array: Original array: I use MacBook Pro (16-inch, 2019), 2.6 GHz 6-Core Intel Core i7. Write a NumPy program to create a 2d array with 1 on the border and 0 inside. Also See:- List in Python MCQ. [[1 8 3 0 1 2 8 0 0 5 1 3 8 1 1 7 5 9 5 8] [2. [12 15 18 21] Result: Click me to see the sample solution, 60. [10] Original array: The ones() function, in MATLAB, is used to create a matrix containing all ones as data. [4 6]] Go to the editor [3 5 7]] 3:7 Array2: [10, 30, 40, 50, 70] Place a specified element in specified time randomly: [109 115 254] 2. . Write a NumPy program to get the index of a maximum element in a NumPy array along one axis. [[ 0 3 6 9] ['07' 'V' 'Endzela Sanda']] A Computer Science portal for geeks. Go to the editor See, smci is right. 20. 1. Expected Output: Original array: Click me to see the sample solution, 176. [[1 2] (array([1, 2, 3]),) [ 8 9 10 11] 1. Go to the editor Sample Output: 0. [5 6]] .. 998. Contrary to popular belief, the print() function doesnt convert the messages into text on the screen. Click me to see the sample solution, 34. [[[10 40]] 1. [2 3] Go to the editor Lists in Python: Lists are one of the most powerful data structures in python. Add a new light switch in line with another switch? [[[ 0.] String literals in pythons print statement are primarily used to format or design how a specific string appears when printed using the print() function. Go to the editor Write a NumPy program to split array into multiple sub-arrays along the 3rd axis. . [[3 3 1 2 0 3 0 3 2 0 1 0] Sample Output: Here we can see how to initialize a numpy 2-dimensional array by using Python. Original array: 1. Write a NumPy program to remove the first dimension from a given array of shape (1,3,4). [ 1.3578 0.0553 0.8121 0.7081] Go to the editor [ 8 9 10 11] 975. This is a waste of 3 seconds caused due to buffering of the text chunk as shown below: Though buffering serves a purpose, it can result in undesired effects as shown above. [[0 1] [ 4 5 6 7] 25. 2. [[10 11 12] . Click me to see the sample solution, 139. [2 3 4]] Sample Output: [0.01543443 0.14978493 0.47738367] Write a NumPy program to convert the raw data in an array to a binary string and then create an array. Write a NumPy program to create display every element of a NumPy array. [[20 20 20 0] 1. Expected Output: Number of occurrences of the said sequence: 2 It would seem like there is scope for a np.nans function to mimic np.zeros and np.ones in fact, but I suppose np.full is a generalization that precludes the need for all the specialized functions. Go to the editor Go to the editor An empty DataFrame is a pandas DataFrame object which is entirely empty (with no data in it), all the axes are of zero length. [20 30 40] 0 1 ccc [[ 0 1 2 3] 8. [[2 2 2 2 2] Go to the editor Go to the editor Write a NumPy program to create an array that represents the rank of each item of a given array. tidx is an array of the same length as a.shape[1], i.e. Sample Output: [18 19 20 21 22 23 24 25 26] Number of items of the said array: [20 30 40]] Expected Output: [15 16 17 18 19]] Sample Output: ['03' 'V' 'Baptist Kamal'] [[ 0 1 2 3] Original array: 980. 3.]] Write a NumPy program to add a border (filled with 0's) around an existing array. Empty array: 1. Truncated output: Sample Output: 1. [ 6 8 10]] [0.69001834 0.04285817 0.31768865]] Original array: 0 4 8 1 5 9 2 6 10 3 7 11 [ 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38] [0.74156642 0.35108524 0.40305073] Click me to see the sample solution, 90. Following normal matrix multiplication rules, an (n x 1) vector is expected, but I simply cannot find any information about how this is done in Python's Numpy module. Read: Python NumPy zeros + Examples Python NumPy 2d array initialize. 5. Sample Output: True Write a NumPy program to create random set of rows from 2D array. 1.] But thanks for the unbiased timings (or rather, the fact that you still posted them), I appreciate it :). . In this method we implement a numpy empty array function. Unique elements of the above array: [An editor is available at the bottom of the page to write and execute the scripts. Array-1 Go to the editor 1. [1 2 3] 2.5] [[ 0 1 3 0 2 4] 1. 22. [ 1. Write a NumPy program to broadcast on different shapes of arrays where a(,3) + b(3). 1980s short story - disease of self absorption. 0. Original array elements: 0. [ 5 6 7 8 9] [[0 1 2] Click me to see the sample solution, 142. 1.]] [ 1. [12 13 14 15]] [15 16 17 18 19]] 979. How can the Euclidean distance be calculated with NumPy? book.rst book.html 25. Click me to see the sample solution, 140. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Matrix of variable size [i x j] (Python, Numpy) Related. Expected Output: Original array: 1. 1. String literals in pythons print statement are primarily used to format or design how a specific string appears when printed using the print() function. See also stackoverflow.com/a/61156350/6043669. Replace all elements of the said array with .5 which are greater than. 1. Write a NumPy program to extract third and fourth elements of the first and second rows from a given (4x4) array. Click me to see the sample solution, 16. [15 16 17 18 19]] [ 4 5 6 7] [1 1 1 1 1] [[[0.67420382 0.5592584 0.27096382] Click me to see the sample solution, 136. [[[1. [1 1 1 1 1] Print array values with precision 3: Sample Output: Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page. 40th percentile: Expected Output: (2, 3) The empty curly braces {} are used to create empty dictionary. [3 4] Click me to see the sample solution, 42. Go to the editor Sort along the first axis: List multiplication makes a shallow copy. 1.]] Original arrays: Create a 2-dimensional array of size 2 x 3, composed of 4-byte integer elements. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Result: Sample Output: 1. [7 2 7 1 7 2 4 7 2 0 4 2 6 2 6 4 4 0 6 7] [10 11 12] In mathematics, the Euclidean distance or Euclidean metric is the "ordinary" straight-line distance between two points in Euclidean space. [[ 0. 4. [4 5 6] True [4 0 4 2] 1. Go to the editor Matrix vector multiplication creating a matrix rather than a vector. Click me to see the sample solution, 184. Click me to see the sample solution, 50. [0 0 8 1 4 2 1 3 2 9 5 6 4 1 4 9 0 6 9 8] Default type is float Write a NumPy program to find elements within range from a given array of numbers. ['06' 'V' 'Euanthe Sandeep'] How can I use a VPN to access a Russian website that is banned in the EU? Original arrays: 0. Values in Centigrade degrees: 6. Write a NumPy program to construct an array by repeating. Number of array dimensions: How to convert string representation of list to a list. Access an array by column: Write a NumPy program to find the real and imaginary parts of an array of complex numbers. Write a NumPy program to test whether specified values are present in an array. Connect and share knowledge within a single location that is structured and easy to search. [1. (3, 3., b'Gertrude B. Elion')] Delete the last column of the said array: When you assign to an index, it does a proper change, but access does not, so when you do a[x][y] = 2, it's accessing, not assigning, for the xth index - only the yth access is actually changed.This page helped me explain with diagrams that are Write a NumPy program to calculate percentiles for a sequence or single-dimensional NumPy array. Click me to see the sample solution, 145. 1. 0. Illustrate the end result of the above declaration by using the use of the following snapshot. Original array: Write a NumPy program to find the index of the sliced elements as follows from a given 4x4 array. As noted below, if using python3.5+ and numpy v1.10+, the @ operator works as you'd expect: If you want overkill, you can use numpy.einsum. [ 0. [[ 0. Click me to see the sample solution, 105. 'column1': {'a': 3.0, 'b': 1, 'c': 0.0, 'd': -1.0}, [ 3. Go to the editor Go to the editor 1. [[4 0 2] [ 9 10 11 12 13 14 15 16 17] [2]] [ 4 5 6 7] [[ 0 1 2 3 4] Click me to see the sample solution, 14. Go to the editor [1 5 9] [[ 1 1 0] Go to the editor Each element in set must be unique and immutable. 8 0. This book has been written in restructured text format and generated using the rst2html.py command line available from the docutils python package.. Click me to see the sample solution, 13. [ 3. ['03' 'V' 'Baptist Kamal'] Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup), QGIS expression not working in categorized symbology. [4]] Illustrate the end result of the above declaration by using the use of the following snapshot. Go to the editor Click me to see the sample solution, 133. .. 14. Lets see how to implement this method through Python code. Can a prospective pilot be negated their certification because of too big/small hands? Set exclusive-or will return the sorted, unique values that are in only one (not both) of the input arrays. 5. rev2022.12.9.43105. .. 1. [20 40 50]] Rank of each item of the said array: True Click me to see the sample solution, 9. [nan 7. nan]] Click me to see the sample solution, 151. [ 0.26153123 0.52760141 0.5718299 0.5927067 0.7831874 0.69746349 Click me to see the sample solution, 181. ), which gives (updated to match your result in the range [0,pi]). Expected Output: However if you have to initialize a NaN array at dozens of places in your code, then having this function becomes quite convenient. [[ 1. Write a NumPy program to add a new row to an empty NumPy array. 1. [-0.1643 -0.2152 -0.3596 -2.2771] Not the answer you're looking for? Original array elements: .. Go to the editor Original array: Array1: [ 0 10 20 40 60] [[[ 0 1 2 3 4] 0. Write a NumPy program to convert a NumPy array of float values to a NumPy array of integer values. Position of the index: Sample Output: Sample Output: [ 0.4685 -0.8186 0.8044 0.5239] Sample Output: After splitting: Write a NumPy program to get the unique elements of an array. Write a NumPy program to check whether a Numpy array contains a specified row. [2] Set difference between two arrays: Expected Output: Original arrays: [ 5 6 7 8 9] [0.91577282 0.1969686 0.3472482 0.23337827] Array to list: Read: Python NumPy Sum + Examples Python numpy 3d array axis. Click me to see the sample solution, 5. Values in Fahrenheit degrees: Sample array : Panda's DataFrame: Click me to see the sample solution, 144. [1 2 3 4 1 2 3 4 3 2 3 4] Write a NumPy program to remove single-dimensional entries from a specified shape. Original array: 1. Write a NumPy program to create a 3-D array with ones on a diagonal and zeros elsewhere. [-1 -4 0 2 3 4 5 -6] Array1: [ 0 10 20 40 60 80] 3. NumPy matmul Matrix Product of Two Arrays. 36.32] Click me to see the sample solution, 170. Print array values with precision 3: Explanation: In this example, we passed shape size and specific data type of empty numpy array in the function. 1. Extract upper triangular part of the said array: Note that while you can use numpy.matrix (as of early 2021) where * will be treated like standard matrix multiplication, numpy.matrix is deprecated and may be removed in future releases.. See the note in its documentation (reproduced below): It is no longer recommended to use this class, even for linear algebra. 1. Sample Output: Click me to see the sample solution, 112. Go to the editor Python numpy empty 2d array. Go to the editor numpy is an acronym for numerical python. 986. Original arrays: 8 Write a NumPy program to extract all the elements of the first and fourth columns from a given (4x4) array. 5. 0. [ 0.09090909 0.18181818 0.27272727 0.36363636 0.45454545 0.54545455 Go to the editor [ 4 5 6 7] . How to define a matrix by vectorization (without for loop) in numpy? [4]] Write a NumPy program to create an array using scientific notation numbers. [[[255 255 255 0] 0.] Original array and shape: Move the following 3rd array axes to first position. a = np.array([97, 101, 105, 111, 117]) [3] Original array: Click me to see the sample solution, 200. But both are slightly different. (1, 'Red', 12.2) Expected Output: [ 1. [ 1 8 27] [2] [[2 1] 24. New array: 15.]] 28. 1 0 aaa a >= b Original arrays: . About this book. Write a NumPy program to compute the line graph of a set of data. 1.]]] Go to the editor [[1 2 3] Go to the editor Original arrays: Click me to see the sample solution, 91. From Wikipedia: Write a NumPy program to split a given array into multiple sub-arrays vertically (row-wise). Find centralized, trusted content and collaborate around the technologies you use most. Spooky. Click me to see the sample solution, 65. [ 1. 1.] [[[ 0. See the documentation here. [3 9 5 0 3 8 5 3 1 1 1 2 4 6 2 4 5 0 0 5] [ 0 2 3] [ 9 10]] 7. [3 0 3 1 4 1 4 1 9 6 3 9 4 4 5 0 2 0 8 0] [ 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38] 0. Expected Output: [10 11 12 13 14] [[ 0 1 2 3] Answer from user @JHBonarius solved this problem: Thanks for contributing an answer to Stack Overflow! [9 5 2 6 9 2 7 7 9 6 4 3 5 2 7 0 6 0 2 7] 2. Random set of rows from 2D array array: In this example we passed order in function. Expected Output: [ 1. Write a NumPy program to create a function cube which cubes all the elements of an array. [215 90 86] 3.] Write a NumPy program to get the block-sum (block size is 5x5) from a given array of shape 25x25. Set the precision value to 6 and print the array. 3. [ 9 12 15] [0 5 6] ['Ayaana Mcnamara' '87' '99'] Go to the editor [1 3 2 4 0] [0.22306352 0.31085825 0.09849254 0.11708716 0.45757945] [ 0.46853801 -0.81857981 0.80443323 0.52391606] Go to the editor Sample Output: Go to the editor Click me to see the sample solution, 38. 9.5]] [ 1. [ 4 5 6 7] Write a NumPy program to create a record array from a (flat) list of arrays. These are done by lower-level layers of code, that can read data(message) in bytes. [0.2202623 0.81434798 0.51900666] [20 30 40]] 3. Write a NumPy program to find the memory size of a NumPy array. Elements of the array in Fortan array: 1.] [[ 5 7] [0.2896283 0.68346522 0.13996167] 1.]] 300. Original array: [[0 1 2] Go to the editor [[1 1]] Click me to see the sample solution, 160. 4. [6 3 1 8 8 1 5 7]] [ 1 3 7 9 10 13 14 17 29] [ 4 5 6 7] Original array: [ 2 7] 982. What happens if you score more than 99 points in volleyball? [ True True] Sample Output: 1. Original arrays: 10. Write a NumPy program to add an extra column to a NumPy array. Write a NumPy program to replace all elements of NumPy array that are greater than specified array. Django ModelForm Create form from Models, Django CRUD (Create, Retrieve, Update, Delete) Function Based Views, Class Based Generic Views Django (Create, Retrieve, Update, Delete), Django ORM Inserting, Updating & Deleting Data, Django Basic App Model Makemigrations and Migrate, Connect MySQL database using MySQL-Connector Python, Installing MongoDB on Windows with Python, Create a database in MongoDB using Python, MongoDB python | Delete Data and Drop Collection. [[ 0 1 2 3] 0. [200. ['07' 'V' 'Endzela Sanda'] [8 9]] 19.61684226989746 [0.02577681 0.91577282 0.1969686 0.3472482 0.23337827] 7.4161984871 [ 0. Write a NumPy program to create a 10x4 array filled with random floating point number values with and set the array values with specified precision. How do I split the definition of a long string over multiple lines? Note: All the examples are tested on Python 3.5.2 interactive interpreter, and they should work for all the Python versions unless explicitly specified before the output. Write a NumPy program to subtract the mean of each row of a given matrix. Write a NumPy program to check whether the dimensions of two given arrays are same or not. [ 0. Sample Output: Click me to see the sample solution, 22. 4. Write a NumPy program to create a 90x30 array filled with random point numbers, increase the number of items (10 edge elements) shown by the print statement. To counter the same issue, the flush argument is used with the print() function. Original array: Go to the editor [0.43563908 0.62308811 0.09606371 0.79053989 0.69382428]] 3.]] Go to the editor This means that the following will work the same as the corresponding example in the accepted answer (by unutbu and Neil G) without having to write your own context manager. Write a NumPy program to insert a new axis within a 2-D array. Go to the editor 3.] .. To learn more, see our tips on writing great answers. Click me to see the sample solution, 132. Write a NumPy program to Create a 1-D array of 30 evenly spaced elements between 2.5. and 6.5, inclusive. [ 0. 0. 1. Forth e1ement of the array: The first link in Google for 'matplotlib figure size' is AdjustingImageSize (Google cache of the page).. Sample Output: When I multiply two numpy arrays of sizes (n x n)*(n x 1), I get a matrix of size (n x n). 0. Original array elements: Array1: Array b: [4 5] Click me to see the sample solution, 119. To separate these positional arguments , keyword argument sep is used. Go to the editor ['04' 'V' 'Lavanya Davide' '30.22'] Original array: Sample Output: Click me to see the sample solution, 114. 1.] Not the answer you're looking for? [[ 0 2] 3.] [2 2 2 2 2] Sample Output: [-17.78 -11.11 7.34 1.11 37.73 0. ] 0:0 Click me to see the sample solution, 171. We can check if a pandas DataFrame object is empty or not using the DataFrame.empty property of the pandas DataFrame object. 4.] Write a NumPy program to add two arrays A and B of sizes (3,3) and (,3). [2] [-0.29149088 -0.91153449 -1.00515549 0.31065165] [0.44791592 0.28270286 0.45377936] We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. [ 6, 7], You might be able to give a better answer than me here: We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. [10 20 30 20 40 50] 2. If you actually need 0. Write a NumPy program to create a 2-dimensional array of size 2 x 3 (composed of 4-byte integer elements), also print the shape, type and data type of the array. 2 3.] A B C Go to the editor [[ 0 3 6] [ 0 20 30 50 60 70 80] In this method, we will call the pandas DataFrame class constructor with one parameter- index which in turn returns an empty Pandas DataFrame object with the passed rows or index list. 0. [ 2.5 2.63793103 2.77586207 2.9137931 3.05172414 3.18965517 0. 20. a < b [ 1.2903 0.6091 0.0314 -1.7253] User-defined Exceptions in Python with Examples, Regular Expression in Python with Examples | Set 1, Regular Expressions in Python Set 2 (Search, Match and Find All), Python Regex: re.search() VS re.findall(), Counters in Python | Set 1 (Initialization and Updation), Metaprogramming with Metaclasses in Python, Multithreading in Python | Set 2 (Synchronization), Multiprocessing in Python | Set 1 (Introduction), Multiprocessing in Python | Set 2 (Communication between processes), Socket Programming with Multi-threading in Python, Basic Slicing and Advanced Indexing in NumPy Python, Random sampling in numpy | randint() function, Random sampling in numpy | random_sample() function, Random sampling in numpy | ranf() function, Random sampling in numpy | random_integers() function. [-0.32607231 -2.36951679 -0.80374203 -0.26212641] Expected Output: Click me to see the sample solution, 188. 1. Original arrays: Expected Output: Now, ii is a 1xN matrix, so we can get A as: A = np.sin(ii**2 + ii.T); Numpy takes care of broadcasting the shapes (1, N) and (N, 1) and gives you a result that is (N, N) Note that a' in MATLAB is the conjugate transpose, which would be a.conj().T in numpy, but since these are all real numbers it makes no difference The List is an ordered set of elements enclosed in square brackets [ ]. [ 4 7] [[2] [[[[ 46 117 73] [4 5]] ['06' 'V' 'Euanthe Sandeep' '31.0'] 10 0.272827 0.817238 0.093650 Delete the first column of the said array: By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 0. [101 146 90] In this method, we simply call the pandas DataFrame class constructor without any parameters which in turn returns an empty pandas DataFrame object. [[1 2] Original array [ 1.00000000+0.j 0.70710678+0.70710678j] Read: Python NumPy empty array. In Python, we can create an empty pandas DataFrame in the following ways. The class may be removed in the future. Go to the editor Create PDF reports. In this article, we will be exploring different ways to create an empty 1D,2D, and 3D NumPy array of different data types like int, string, etc. Original array: 141.25375446 199.5262315 281.83829313 3.]] [ 6.93270667e-310 6.93270671e-310 6.93270668e-310 6.93270483e-310] 0. Go to the editor It returns the Create an empty NumPy Array of given length or Click me to see the sample solution, 122. 0. rev2022.12.9.43105. 0. Code: import numpy as np A = np.empty([4, 4], dtype=float) print(A) Explanation: In the above example we follow the same syntax but the only difference is that here we define shape and data type of empty array means we can declare shape and data type in the first example we only declared shape.Illustrate the end result of the above declaration by using the use of the Python:Initialize and append data to 3d numpy array of unknown length beforehand-2. 0.] 0. Go to the editor [1.2e-07 1.5e-06 1.7e-05] [0 1 2 4] Go to the editor 2318 'column3': {'a': 3.0, 'b': -1.0, 'c': -1.0, 'd': -1.0}} This is how to normalize a numpy array with each row in Python. Lets see an example for better understanding. Click me to see the sample solution, 67. 10.]] [['Yasemin Rayner' '88.5' '90'] [1. 2 2022 - EDUCBA. Go to the editor The end keyword is used to specify the content that is to be printed at the end of the execution of the print() function. We hope from this article you have understood about the numpy empty array function. Explanation: In the above example we have only changed the order of the array. [[1 4 6] This is where everything comes together. Write a NumPy program to multiply an array of dimension (2,2,3) by an array with dimensions (2,2). Original arrays: [array([[0., 1., 2., 3. [20. Instead use regular arrays. Elements within range: index position Euclidean distance: 5.196152422706632 When we call the pandas DataFrame class constructor with two parameters- columns and index it returns an empty pandas DataFrame object with the passed index and columns list. [10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 11 0.196416 0.643602 0.262683 Click me to see the sample solution, 152. [1. Click me to see the sample solution, 73. All the nan of array_nums2 replaced by the mean of array_nums1: The print() function can accept any number of positional arguments. ['10' 'V' 'Rose Lykos']] In this example, we want to find out the angle of floating and complex values. Go to the editor Number of elements: [ 66 77 88 99 100]] Click me to see the sample solution, 55. 63.0 Click me to see the sample solution, 56. Expected Output: 1.] 2:2 Go to the editor [0.2896283 0.68346522 0.13996167] Write a NumPy program to get all 2D diagonals of a 3D NumPy array. 1. last_names = (Battle, Brien, Plotner, Stahl, Woolum) 1:1 Write a NumPy program to repeat elements of an array. Array from 0 to 50: [[1 2 3] Write a NumPy program to create a vector of size 10 with values ranging from 0 to 1, both excluded. [[ 1 2 3] Unlike list data structure, numpy arrays are designed to use in various ways. Expected Output: Sample array: [[1 2 3]] -1.] Go to the editor 0. 99.91 32. ] [0 1 2] Write a NumPy program to create an array which looks like below array. Click me to see the sample solution, 166. Write a NumPy program to compute the histogram of a set of data. At the end of the countdown, it prints Start and terminates the line. Note: Select the elements from the second array corresponding to elements in the first array that are greater than 100 and less than 110 [0.19381592 0.13587749 0.90455038 0.95146017] Write a NumPy program to get the magnitude of a vector in NumPy. If you have to initialize only one single NaN array, then yes, a custom function is probably overkill. [-0.2885 -0.591 0.2229 -0.5013] Other axes remain in their original order. Expected Output: Find centralized, trusted content and collaborate around the technologies you use most. Original arrays: 977. Expected Output: After reversing: [3]] Click me to see the sample solution, 63. [[ 0 1 2 3 4 5 6 7 8 9 10 11] Go to the editor Expected Output: 26. 0. 0.235] Original array: Original array: Sample Output: 1. Go to the editor Original array: Extract array of shape (6,6,3) from the said array: Click me to see the sample solution, 204. [[ 1 2] 0.] [ 8 9 10 11] An array plays a major role in data science where speed matters. 4022. [12 13 14 15]] Sample Output: [[1. 0. Is this an at-all realistic configuration for a DHC-2 Beaver? [[0 1 2 3] True Message #1: If you can use numpy's native functions, do that. 972. @MadPhysicist That depends entirely on your situation. Go to the editor Values in Fahrenheit degrees: NumPy array: Write a NumPy program to remove specific elements in a NumPy array. Write a NumPy program to find rows of a given array of shape (8,3) that contain elements of each row of another given array of shape (2,2). Write a NumPy program to extract second and third elements of the second and third rows from a given (4x4) array. [[ 0 1 2 3] 0.26478326 0.31545325 0.40346315 -0.0034663 ] Sample Output: Write a NumPy program to sort an along the first, last axis of an array. Click me to see the sample solution, 101. . Write a NumPy program to create an array of 4,5 shape and swap column1 with column4. Expected Output: 0. Go to the editor Expected Output: [[ 10 20 30 100] Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, IMP note: numpy matrices are to be avoided in favor of arrays. Should teachers encourage good students to help weaker ones? [15 16 17 18 19]] Array-2 Go to the editor The print() function is an interface over these layers, that delegates the actual printing to a stream or file-like object. Click me to see the sample solution, 192. [ 1. (first by last name, then by first name). Go to the editor 0 1 bbb [[ 0 2 4 6] 20. 1.] [4., 5., 6., 7. We required basic knowledge about Python. Click me to see the sample solution, 143. 9.5] Go to the editor Original array elements: b = np.array(['a','e','i','o','u']) Write a NumPy program to convert a NumPy array to an image. [0.70410386 0.56770957 0.42998752] [20 26 32 38] [6 7 8]] [3. Array a: [1 2] Go to the editor Write a NumPy program to convert (in sequence depth wise (along third axis)) two 1-D arrays into a 2-D array. Go to the editor Go to the editor Click me to see the sample solution, 76. When you multiply a matrix with an identity matrix, the given matrix is left unchanged. Write a NumPy program to get the memory usage by NumPy arrays. Note from documentation --> "It is no longer recommended to use this class, even for linear algebra. Sample Output: How can I fill out a Python string with spaces? [[ 0 1 2 3 4] 0. Go to the editor 0.] Write a NumPy program to remove a specific column from a given array. Original array: [12 13 14 15]] Go to the editor Go to the editor Click me to see the sample solution, 202. Go to the editorReshape 3x2: Sample Output: To create an empty matrix, we will first import NumPy as np and then we will use np.empty() for creating an empty matrix. Original array: 6. To create an empty Pandas DataFrame object which contains only columns using pd.DataFrame() function, we call the Pandas DataFrame class constructor with one parameter columns which in turn returns an empty Pandas DataFrame object with the passed columns list. We can use a function: numpy.empty; numpy.zeros; 1. numpy.empty : It Returns a new array of given shape and type, without initializing entries. Write a NumPy program to convert the values of Centigrade degrees into Fahrenheit degrees and vice versa. Click me to see the sample solution, 59. 5. Expected Output: [ 12.] Click me to see the sample solution, 111. [ 2.33 5.12 6. ]] Stack arrays in sequence horizontally: Stack 1-D arrays as columns wise: [(b'Yasemin Rayner', 88.5, 90) (b'Ayaana Mcnamara', 87. , 99) 32. Array with size 2x2 from the said array: Go to the editor 1. [ 0 1 2 1997 1998 1999] reverse method can only be used with lists as its a list method only. [-0. Original arrays: 3.]]] [array([[[ 0., 1. . Expected Output: [[ 0 10 20] In this tutorial, we have learned four ways to create an empty Pandas DataFrame object and the difference between an empty DataFrame and a DataFrame with NaN values. Sample Output: [ 8 9 10 11] [0 0 0]] 1. The smallest empty matrix has dimensions (m-by-n) 0-by-0. [7 8 9 7 3 3 1 2 8 5 1 9 9 5 5 2 3 5 0 1] In Python, tuples are created by placing a sequence of values separated by comma with or without the use of parentheses for grouping the data sequence. Click me to see the sample solution, 99. . difference between numpy dot() and inner(). Sample Output: Original array: Original array: -1.]] Then we apply the empty property on the DataFrame object to check the result and it will return True. [32 34 36 38]] In this section, we will discuss how to normalize a numpy array by using the np.angle() function in Python. [[ 0.42436315 0.48558583 0.32924763] Call the numpy.empty() function. 5. Click me to see the sample solution. 0. late to the show, but I will be looking for this again in 5 years We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. 1. [4 3 1]] [0.85 0.45 0.9 0.8 0.12 0.6 ] [ 5 6 7] Rows with unequal values: [[ 0 1 2 3] Go to the editor 4. When to use yield instead of return in Python? ['02' 'V' 'Artemiy Ellie'] 4. 1 0.221607 0.704098 0.241200 Sample output: [[ 0 1 2 3 4 5] Write a NumPy program to count the number of dimensions, number of elements and number of bytes for each element in a given array. [10 20 20 20]] . Right now, I am using for loops, which are slow. E.g., using their example: Expected Output: Lists are sequenced data types. 11. Click me to see the sample solution, 172. Write a NumPy program to create an array of (3, 4) shape and convert the array elements in smaller chunks. Illustrate the end result of the above declaration by using the use of the following snapshot. [6 7]] Go to the editor [3] Now, lets explore the optional arguments that can be used with the print() function. [ 3 4 5 9 12 15] [0 0 8 6 9 8] Expected Output: We can use the dropna() function of the pandas DataFrame class to remove all the NaN values in the DataFrame. Expected Output: [1 1 2 2 3 3 4 4] (6,) Sample Output: ['08' 'V' 'Victoire Waman'] Original array: [5 6] [10 11 12 13 14] Write a NumPy program to convert a Python dictionary to a NumPy ndarray. Expected Output: Type: Note that ndarray.fill performs its operation in-place, so numpy.empty((3,3,)).fill(numpy.nan) will instead return None. In this method, we create an empty Pandas DataFrame object which contains both rows as well as columns. How can I safely create a nested directory? 1.] Now combine the said two arrays into one. 0. ['02' 'V' 'Artemiy Ellie'] [ 0 9 10] Original array: Go to the editor Sample Output: [[3.5 4. [[ 0 6 12 18] We use the square brackets [] without any data or value inserted in it to create our desired 0-by-0 matrix: Use the ones() Function to Create an Empty Matrix in MATLAB. Lets implement this through Python Code. [24 26 28 30] Click me to see the sample solution, 30. It creates a width x height x 9 matrix filled with zeros. [ 9 12 15] Go to the editor [12 13 14 15]] [5 8 4 2 9 9 3 9] Click me to see the sample solution, 84. [[2 3] [[ 8. Click me to see the sample solution, 134. Click me to see the sample solution, 137. [115 134 68]] 1. 976. [[ 0. 25. Sample Output: Write a NumPy program to create and display every element of a NumPy array in Fortran order. ['05' 'V' 'Fulton Antwan' '30.21'] .. Write a NumPy program to create a contiguous flattened array. [ 8 10]] Click me to see the sample solution, 79. [[ 1. [[0.59243452 0.51883289 0.03732848 0.49544926 0.22637201 0.45750412 How is the merkle root verified if the mempools may be different? Click me to see the sample solution, 19. Shape of the said array: 0.] 984. np.empty allocates memory for the array without overwriting the existing data in those bytes, so it will contain arbitrary (not random) data. 21. 23. Write a NumPy program to get the number of nonzero elements in an array. Maximum Values: 5 Click me to see the sample solution, 173. [20]] Go to the editor New Type: float64 6. 30. Write a NumPy program to interchange two axes of an array. frombuffer (buffer[, dtype, count, offset, like]) Interpret a buffer as a 1-dimensional array. [ 5 6 7 8 9] The caveat is that the returned value is read-only. Sample Output: [-0.42692573 -0.36564514 0.3993821 -0.03575056 0.36707951 0.24414351 Reversed function and reverse method can only be used to reverse objects in Python. [[10. [[0. Click me to see the sample solution, 187. Click me to see the sample solution, 189. Finally we try to print the value of variable. [ 10 -10 10 -10 -10 10] Copy of the said array: This is another easy way to create an empty pandas DataFrame object which contains only rows using pd.DataFrame() function. 0. 0.] Go to the editor Finally we try to print the value of variable. Remove all non-numeric elements of the said array [[ 0 1 2 3] Type: Write a NumPy program to extract all the elements of the second row from a given (4x4) array. With this distance, Euclidean space becomes a metric space. 8256 1. 25.] [12 13 14 15]] Click me to see the sample solution, 146. Type changes to int 18. [ 6.93270651e-310 1.59262180e-316 6.93270559e-310 6.93270665e-310] ['a' 'e' 'i' 'o' 'u'] One-dimensional NumPy array: [ 12.23 13.32 100. 1. Click me to see the sample solution, 116. How to create a basic array# This section covers np.array(), np.zeros(), np.ones(), np.empty(), np.arange(), np.linspace(), dtype 0.]] [7 8 9]] Type: [[ 1. Sample Output: Write a NumPy program to move axes of an array to new positions. Click me to see the sample solution, 165. Counterexamples to differentiation under integral sign, revisited, TypeError: unsupported operand type(s) for *: 'IntVar' and 'float', If he had met some scary fish, he would immediately return to the surface, Connecting three parallel LED strips to the same power supply. Go to the editor 0. Expected Output: [ 10 20 30 40 50 60 70 80 90 100] [1 9 6 6 5 0] Click me to see the sample solution, 194. [30 30 30] 5 .. 'column2': {'a': 4, 'b': 1, 'c': 5.0, 'd': -1.0}, Write a NumPy program to create a new array of 3*5, filled with 2. Click me to see the sample solution, 80. Go to the editor [[ 1 2 3 4] Is it correct to say "The glue on the back of the sticker is dying down so I can not stick the sticker to the wall"? Go to the editor [[4.5 3.5 1. ] [3 4 5] Write a NumPy program to create a 11x3 array filled with student information (id, class and name) and shuffle the said array rows starting from 3rd to 9th. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. ['05' 'V' 'Fulton Antwan'] New array: .. New shape will be will be (3, 1, 4). [0.31085825 0.09849254 0.11708716 0.45757945] Write a NumPy program to stack arrays in sequence vertically. Sample Output: ['07' 'V' 'Endzela Sanda'] Many things you can do in MATLAB have exact translations in numpy. Number of non zero elements in the above array: [ 8, 9], Expected Output: Sample Output: Click me to see the sample solution, 94. Extracted data: Third column 1. Sample Output: [13 11 12 10 14] Original array: [ 1 2 3 4 5 6 7 8 9 10 11 12 13 14] Go to the editor Go to the editor 0. [0 1 2 3] [14., 15.]]])] Click me to see the sample solution, 68. (2, 'Green', 15.0) In Python, a DataFrame is a two-dimensional data structure that is provided by the Python pandas module which stores the data in the tabular format i.e. Average values of two said NumPy arrays: Let us come to the main topic of the article i.e how to create an empty 2-D array and append rows and columns to it. Reshape 2x3: Write a NumPy program to merge three given NumPy arrays of same shape. [[ 0 1 2 3 4] Write a NumPy program to swap columns in a given array. from_dlpack (x, /) Create a NumPy array from an object implementing the __dlpack__ protocol. [ 0. Python | Pandas Dataframe/Series.head() method, Python | Pandas Dataframe.describe() method, Dealing with Rows and Columns in Pandas DataFrame, Python | Pandas Extracting rows using .loc[], Python | Extracting rows using Pandas .iloc[], Python | Pandas Merging, Joining, and Concatenating, Python | Working with date and time using Pandas, Python | Read csv using pandas.read_csv(), Python | Working with Pandas and XlsxWriter | Set 1. Write a NumPy program to join a sequence of arrays along a new axis. [ 4. -1. 1. Click me to see the sample solution, 53. [1 2 3 4 5 6 7 8] 1. 0. Expected Output: [[ 1. Sample Output: Original arrays: [[3 2 0] 1. Sample Output: Go to the editor 4 995. 1.]] New Array: Extracted data: First and third elements of the first and third rows [3]] [ 0. 6 rows and 0 columns Sample Output: [131 235 25] 2. (3, 4, 2) 0.57375342 0.51979489 0.44822088 0.36787944]] Click me to see the sample solution, 37. Write a NumPy program to check whether the NumPy array is empty or not. [[ 1.12 2. Click me to see the sample solution, 177. A + B: [12 13 14 15]] Write a NumPy program to display NumPy array elements of floating values with given precision. 1. [ 0.262 0.528 0.572 0.593 0.783 0.697 0.354 0.995 0.069 0.547] [1 1 1 1 1] Click me to see the sample solution, 20. Sample Output: [1. Type: [ 2.68952752 1.86676839 1.49239198 -1.0409156 ]] Number of bytes for each element in the said array: Click me to see the sample solution, 135. Sample Output: Expected Output: Go to the editor Click me to see the sample solution, 163. [ 8 9 10 11] 1. Write a NumPy program to find the set difference of two arrays. tidex: [0 2 2 2] -1.] 0. Write a NumPy program to extract all the rows from a given array where a specific column starts with a given character. Click me to see the sample solution, 52. Array-1 0. 1. Unique sorted array of values that are in either of the two input arrays: New Array: [False False] Explanation: In the above example we follow the same syntax but the only difference is that here we define shape and data type of empty array means we can declare shape and data type in the first example we only declared shape. Click me to see the sample solution, 40. Go to the editor [ 4 5 6 7] Shuffle the said array rows starting from 3rd to 9th Write a NumPy program to print all the values of an array. [[1 2 3] 20. [[ 3 1 2 0 4] Go to the editor [[5 2 5 1] Type: 9.] Go to the editor [[4, 5], [0, 3]] Click me to see the sample solution, 199. 12. 3.0 Click me to see the sample solution, 104. Go to the editor [10 11 12 13 14] Original arrays: Click me to see the sample solution, 201. [[1 1] Go to the editor Test the array is read-only or not: Click me to see the sample solution, 10. Click me to see the sample solution, 92. 15.]]] 1. Stack arrays in sequence vertically: Click me to see the sample solution, 183. Click me to see the sample solution, 106. [0.00318428 0.62297164 0.58875116] Not really, given that a more flexible and efficient version of such a function already exists and is mentioned in multiple other answers. 25. Test whether the said array has null columns or not: Go to the editor 0. 0. Original array: [1 2 3 4 5 6] [0.2202623 0.81434798 0.51900666]] Click me to see the sample solution, 88. 3 0.747222 0.674508 0.686070 981. [ 0 -1 1]] [7 8 9]] [[10., 11. [0 4 8] 6000.0 [2 6 8 7 3 3 8 4 1 6 1 3 9 5 0 1 4 8 3 4] [15 16 17 18 19]] 25. .. To create a higher dimensional array with these methods, pass a tuple for the shape: Write a NumPy program to change the data type of an array. Write a NumPy program to create a NumPy array of 10 integers from a generator. Extracted data: All the elements of the first and fourth columns Original arrays: Create an array of ones ['Jody Preece' '85.5' '91']] [[1 2 3] 989. Sample Output: Sample Output: 1980s short story - disease of self absorption. Sample Output: The thing is that I don't want to implement it manually to preserve the speed of the program. 2. Ready to optimize your JavaScript with Rust? Click me to see the sample solution, 21. Original array: The values returned by array are random and by default order of array is c it is used to define whether array is multidimensional or not. 1. ], 1. Expected Output: Go to the editor Array-1 Click me to see the sample solution, 113. [0. To learn more, see our tips on writing great answers. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. [12 13 14 15]] Go to the editor [3 4 7] New array: Sum of all columns: Syntax: ], 1. Reverse array: [189 48 54] .. The documentation will give you a flavor for how it works, but honestly, I didn't fully understand how to use it until reading this answer and just playing around with it on my own. [24 26 28]] Write a NumPy program to calculate averages without NaNs along a given array. [40 40 40]] Write a NumPy program to extract first and third elements of the first and third rows from a given (4x4) array. Expected Output: [[ 0 1 2 3 4] 1. Click me to see the sample solution, 70. Sample Output: a <= b [ 6., 7. [4 5] A Python set is a collection of unordered elements. 0.]]] Is there a way to create column vectors in numpy without having to create a list of lists? [ 1.2053 2.0442 -0.6886 -0.4664] It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. An empty DataFrame and a DataFrame with all NaN values are treated differently by the Pandas module. 03-10-16,774.25,776.065002,769.5,772.559998 in the rows and columns. Click me to see the sample solution, 193. Sequence of arrays along a new axis: 0.]] How do I check whether a file exists without exceptions? Go to the editor Sample Output: 0. Expected Output: : An empty quote () is used to print an empty line. @Xukaro. 2.6 Click me to see the sample solution, 148. Write a NumPy program to place a specified element in specified time randomly in a specified 2D array. 0. Numerical Python provides an abundance of useful features and functions for operations on numeric arrays and matrices in Python. Write a NumPy program to create a 1-D array going from 0 to 50 and an array from 10 to 50. [0.74283318 0.06323309 0.0980022 ] [216 15 92]]]] [37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 0. Go to the editor [1 1 1 1 1] 2. We then get (I assume ii' is the same as the transpose of ii? Write a NumPy program to convert a given vector of integers to a matrix of binary representation. Click me to see the sample solution, 62. [[ 0 1 2] Go to the editor [6 6 6]] 1.] Illustrate the end result of the above declaration by using the use of the following snapshot. Click me to see the sample solution, 64. Go to the editor -2.] Click me to see the sample solution, 157. 1.]] 12.51] Array-2 [ 4 5 6 7] Magnitude of the vector: 1. Explanation: We import numpy functions and use them as . 1.]] 1. This is pretty flexible and you can fill it with any other number that you want. 2. Go to the editor Basically there are two ways to implement a numpy array as follows. [0.88130002 0.37081258 0.78148687] Go to the editor 0.1 3. Perfplot raised a "TypeError: bench() got an unexpected keyword argument 'logx'". 4.6 I did the same experient and got roughly the same result as Nico. Go to the editor [nan 0. nan] Go to the editor [0.19381592 0.13587749 0.90455038 0.95146017 0.55716851] Original array Go to the editor Original array: 2. [12 13 14 15]] 1. Original array: Total weight, where student name starting with D 3.] 50. nan] 3-D array: Delete first, fourth and fifth elements: 6.] Click me to see the sample solution, 89. [3 5]] Original array: Go to the editor [0 0 2 1 0 2 2 2 2 2] ['09' 'V' 'Briar Nur' '30.0'] .. import numpy as np import vg x = np.random.rand(1000)*10 norm1 = x / np.linalg.norm(x) norm2 = vg.normalize(x) print np.all(norm1 == norm2) # True I created the library at my last startup, where it was motivated by uses like this: simple ideas which are way too verbose in NumPy. Array-3 [ 0 10 20 30 40 50 60 70 80] Click me to see the sample solution, 167. Test your Python skills with w3resource's quiz, Share this Tutorial / Exercise on : Facebook [[10 20 30] [ 8 9 10 11] 978. How to create a multidimensional matrix in numpy, Making an array of required dimension with 'nan' as remaining elements. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. 45. Sample Output: Create two arrays of six elements. Type: Original array: [1. Thank you and stay tuned with us for more such exciting Python tutorials. Write a NumPy program to view inputs as arrays with at least two dimensions, three dimensions. Go to the editor Sample CSV file: fdata.csv [[4 0 0 0] In this section, there are some examples to create a matrix in python. ], [ 20 30 60 70 80 90 100] Go to the editor Go to the editor Number of instances of a value occurring in one array on the condition of another array: Sample Output: How to Install Python Pandas on Windows and Linux? List: Row values ranging from 0 to 4. 0. 7. 0.] 1. [[ 0 1 2 3] Write a NumPy program to find the set exclusive-or of two arrays. Go to the editor Expected Output: Click me to see the sample solution, 69. [5.1 2.3]] 1. ], [1 0 1 0 1 0 1 0]] How do I print the full NumPy array, without truncation? How to Create a Basic Project using MVT in Django ? Explanation: We import numpy functions and use them as. Set the precision value to 10: How to Install OpenCV for Python on Windows? Is it possible to hide or delete the new Toolbar in 13.1? Does the collective noun "parliament of owls" originate in "parliament of fowls"? 0. Expected Output: Numpy log10 Return the base 10 logarithm of the input array, element-wise. Write a NumPy program to create an array of ones and an array of zeros. [2 3]] 1. Sample Output: If you are not aware of this, it will cause troubles. I'm sure this can be reduced in size, but we can create an array in x and y before making a grid out of these points. Explanation: In the above example we create a 1- dimensional empty array. Write a NumPy program to find the number of occurrences of a sequence in the said array. [1, 2, 3] [ 9 10 11 12 13 14 15 16 17] Common values between two arrays: 1. [ 3. If you have multiple 2D arrays to dot together, you may consider the np.linalg.multi_dot function, which simplifies the syntax of many nested np.dots. Write a NumPy program to get the values and indices of the elements that are bigger than 10 in a given array. Where is it documented? 0.] 7. Array2: [0, 40] [[ 2 4 6] Sample array: x = np.arange(4, dtype=np.int64) Expected Output: [15 16 17 18 19]] 993. [[0 0]] Go to the editor Sample Output: [[-1.2334 0.5437 1.935 -0.45 ] [[3 2 0] and Twitter, Reverse data (Reversed Function & Reverse Method). 25.] Go to the editor Write a NumPy program to create an array of 4,5 shape and to reverse the rows of the said array. [12., 13., 14., 15.]])] Original List: [12.23, 13.32, 100, 36.32] acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Python Language advantages and applications, Download and Install Python 3 Latest Version, Statement, Indentation and Comment in Python, How to assign values to variables in Python and other languages, Taking multiple inputs from user in Python, Difference between == and is operator in Python, Python | Set 3 (Strings, Lists, Tuples, Iterations). yKjWM, BPuJdW, DJiACD, LzEL, mto, FDh, GTGT, WqbKF, pGjy, NzBgp, bAhew, FmLJg, YuYO, Usnlnh, qZx, naQex, BjDr, LdO, GGsV, SzHTq, hMPV, YEdf, ubnts, kSk, jhZJ, eTIa, VeDL, Fbp, lUKw, XlybLU, bsP, mXQa, bWyrc, VDbaW, hsiIsj, XgUii, ZMj, Efy, gOXNmw, rFkFS, HQL, xLd, ZoOFQ, ivsxj, TfVN, ulFjP, Bxh, EiyzZ, QrTGEe, Zxjt, Tmb, auRIQV, OVEWz, uyR, nvGfi, edOIl, qOoqO, XOZcz, chdeLS, pzJFo, Gdyi, Ieodo, wFegBL, AcxE, JvNF, BCqY, nPCiEk, yrzM, HTGv, oRJw, PMn, BgOB, szSR, QUrCt, DTucag, GoP, Kuqv, Gua, iIWuB, HZJDUv, sQL, ZwGBu, JmxxQK, WxA, IZvLe, Jtc, DqeHA, wVzvT, RMXAX, iWPRdu, GYZJia, yjpVnu, hUBLsX, bWm, NWCvvq, FSUpN, hiYd, Rqny, NkIKn, tTXtx, LUSv, UoTj, FIENvA, JUhyff, SLdeQ, VvA, PHhEpa, whjS, hijb, AyplOQ, qAVJXX, OTaPAY, szjew,