{'B'} 0.2785 0.035712 0.33 Other MathWorks country Can a prospective pilot be negated their certification because of too big/small hands? Thanks. Unable to complete the action because of changes made to the page. so I want the first row of data for each month. How to remove duplicate rows and select first from duplicate I have a data in worksheet where PO column contains the same value and WBS element column contains different value. (I'm presuming the 0.25 and 0.5 are confidence limits of the test and not values of the statistic as Adam presumed below). {'B'} 0.54688 0.84913 0.25 Test col2 col3 col4 5 Most common ways to say hello in French Bonjour (hello, good morning) Salut! The matrix is an example, but generally if two rows have the same value in the first column I have to remove the second one. For example, If floating point representation is causing problems like this, you'll need to modify these two lines of my solution. Accelerating the pace of engineering and science. Unable to complete the action because of changes made to the page. 'Perm t-test equal [250ms,500ms 92, 108]: Avg: 11_right FCL', 'Perm t-test equal [500ms,900ms 92, 108]: Avg: 11_right FCL'. Accepted Answer I'm getting the below message. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. matlab: duplicate rows removal [duplicate]. I thought this might be due to the dimensions being different in that the previous code expected two matches/duplicates but this code is open to a variable number of matches? So if none of the cells below in col3 for the 'A' test have a value that is <0.05 then remove all rows for 'A'? The solution relies on the Date field being sorted so unique returns the first/lowest dateif possibly not, then sort first. offers. However, it requires you to have sufficient space available in the database to temporarily build the duplicate table. [testID, testNames] = findgroups(T.Test); rowNum1 = arrayfun(@(i) {find(testID==i & T.col4==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.col4==0.50, 2)}, unique(testID)); rowNums = cell2mat(cellfun(@(c){padarray(c,[2-numel(c),0],NaN. The first column is the name of statistical test (of which there are several hundred different tests). There may be some small differences between the values that matlab does not show by default. rowNum3 finds those Tests with a value < 0.05 in T2. I don't see the duplication in the sample dataset? Why was USB 1.0 incredibly slow even for its time. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Or you could create a very similar table with dummy-data and make sure that it has the same problem as your table. arrays matlab matrix duplicates 'Perm t-test equal [250ms,500ms 92, 108]: Avg: 11_right FCL', 'Perm t-test equal [500ms,900ms 92, 108]: Avg: 11_right FCL'. In, FCL' 0.379117217892076 0.705573606598350 0.246093750000000. . So in this case the new table would look like this: B = table([1;2;3;3;3;4], [ 0;0;0;0;1;1], [1999;1999;1999;2000;2001;2000]); I can't come up with anything other than a solution involving a nested loop, which will have horrible performance on larger sets of data. Did the apostolic or early church fathers acknowledge Papal infallibility? rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 1)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 1)}, unique(testID)); First, please see my previous comment which I may have added while you were typing your response (I updated my solution). Re: Remove PivotTable Duplicate Row Labels. The effect as you demonstrate is what I'm looking for. Next, go to Data in the Sort & Filte r group and click on Advanced. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. SeaDek Certified Fabricators are factory trained to specialize in the entire SeaDek process. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Find centralized, trusted content and collaborate around the technologies you use most. The mathwork contact button does not support uploads. I figured it out. Check out my Recommended Power Supplies for RTX 3090 Ti GPUs below. This the exact code I ran on my table T. T3 is the last column and T4 is the first column. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. In this post I explain advanced manipulation of locals via macro lists, which allow us to get the number of elements in a local, handle duplicate elements, sort (and shuffle) elements and perform other logical operations. Mathematica cannot find square roots of some matrices? How large do you expect your real data to be? The tests do not have to be in order. Select your List-Range values. What am I doing wrong? your location, we recommend that you select: . In this article, we will discuss how to find duplicate values and their indices within an array in MATLAB. Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. {'B'} 0.96489 0.67874 0.5 Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. Find the treasures in MATLAB Central and discover how the community can help you! My original solution removed the first row that contains .25 or .50 in col4 for each test. Find the treasures in MATLAB Central and discover how the community can help you! I am trying to remove a column from a matlab table (not a matrix) with the next codes: %remove one for the last column TJNew= removevars (TJClean,5); TJNew= removevars (TJClean,'Prob2'); TJNew= removevars (TJClean,TJClean.Prob2); but I am getting this error: Undefined function or variable 'removevars'. If I remove duplicates in Excel, 4 rows of data get removed. I'm not sure why I got a different result. rowNums4 identifies those that came back negative and I can use this vector to remove those rows. To omit any rows in a table that are duplicated, use the unique function. I had a question and got an answer yesterday about removing doubling rows in a matrix, and I can't figure out why it omits certain rows in a matrix. The Matlab expression B=all (A) is translated into Scilab by B=and (A): If A is a matrix, all (A) is equivalent to all (A,1) in Matlab whereas in Scilab and (A) is a logical AND of all elements of A. advection_pde , a MATLAB code which solves the advection partial differential equation (PDE) dudt + c * dudx = 0 in one spatial dimension, with a . Once you have successfully selected the table, you will need to click on the Data tab on the top of the screen and then select "Remove Duplicates" in the Data Tools drop-down box as shown below. Now the solution only removes the rows if the .25 or .50 is a duplicate within each test. Is there a way to adapt this code to remove any unique test that does not have a value <0.05 in col3? . rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 1)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 1)}, unique(testID)); First, please see my previous comment which I may have added while you were typing your response (I updated my solution). A = [1 2 3 45; 3 2 1 45; 1 4 5 54; 5 4 1 54]; You have a row that begins with 5, but no output row that begins with 5. rowNums4 identifies those that came back negative and I can use this vector to remove those rows. sites are not optimized for visits from your location. For rowNum1 and 2 the same vales are there (both are listed as 648x1 cell same as before with first script (with 39 and 40, the first set of duplicates, listed there too). Using the size or count method with pandas. Certified Fabricators digitally pattern boats, create CAD drawings, cut SeaDek PE/EVA material using CNC technology, and install the finished products. Second, those trailing 0s are suspicious. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. What matters is if those values equal 0.25 or 0.50. which would also explain the trailing 0s. Duplicate elements Add and remove elements . Test col2 col3 col4 Accelerating the pace of engineering and science. (p. vanashanugat ) 2. I split this column after the second ms and re-ran your code, using the second new column as the test idenifier, so that the two rows are now identified as the same test. Unable to complete the action because of changes made to the page. How could my characters be tricked into thinking they are on Mars? Refer to the duplicate, but operate on the transpose. 92.0000 166.0000 71.0000 173.0000 55.0000 235.0000 72.6667 191.3333]; I want to remove the redundant rows from A. Can anyone advise how I delete the first of these rows (the first one of the .25 and the first one of the 0.5 rows) for every statistical test? I tried removing ", 2" after <0.05 in the first line but same response. Please help, as I already spent some hours trying to fix it myself (I suck at programming) and nothings seems to work. Something can be done or not a fit? This is done by transferring only the unique rows to the newly created table and deleting the original one (with the remaining duplicate rows). # Delete duplicate rows based on specific columns df2 = df.drop_duplicates(subset=["Courses", "Fee"], keep=False) print(df2) Yields the same output as above. There is a duplicate of all 0.25 and 0.5s. I assume this is the right structure. I'm getting the below message. {'C'} 0.15761 0.75774 0 Choose a web site to get translated content where available and see local events and Based on Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. The 0.25 values for this section are in rows 39 and 40 of the table T. FCL' 0.449377841816944 0.653086728317921 0.242187500000000, FCL' 0.379117217892076 0.705573606598350 0.246093750000000, FCL' 0.411715894798510 0.683829042739315 0.250000000000000, FCL' 0.411715894798510 0.680329917520620 0.250000000000000, FCL' 0.564101287653156 0.573856535866034 0.253906250000000, FCL' 0.794131830628734 0.429142714321420 0.257812500000000, This is the same section after running the code. I believe Michael wanted all instances of each row that appears multiple times be removed. [1999;1999;1999;2000;2001;2002;2000;2001;2004;2000;2005;2005;2001]. Find the treasures in MATLAB Central and discover how the community can help you! {'C'} 0.97059 0.74313 0.25 It doesn't matter that. GeeTwo on 16 Aug 2022 Vote 0 Link Translate %Here's a much cleaner way to do it with 2019a or later! I sorted rowNum1 and got back this. Should it not be 39, 246, 453, etc? The tests do not have to be in order. sites are not optimized for visits from your location. Or maybe you meant that they have the same values as the previous version which would only happen if all tests had duplicates for .25 and .50. Solution #2: Handle duplicate rows during query. This the exact code I ran on my table T. T3 is the last column and T4 is the first column. You can create an intermediate table and use it to remove duplicate rows. You can set 'keep=False' in the drop_duplicates() function to remove all the duplicate rows. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Accelerating the pace of engineering and science. (p. maurusi ) 5. There is a duplicate of all 0.25 and 0.5s. in Untitled4>@(i){find(testID==i&TableMain.T2<0.50)} (line 6), below returns a logical vector the same size as. your location, we recommend that you select: . Dropbox), send the link, and then remove it from the cloud service. Remove dublicate rows in long table using matlab Extracting rows from .mat table using for loop in MATLAB fetch in matlab with SELECT using postgreSQL locks table long after completion how to remove only the desired row from the matrix and return the rest rows of a matrix using matlab The advantage of using this method is faster ingestion since de . None get removed using unique () Then click on Unique Records Only. MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques. Should it not be 39, 246, 453, etc? the post title is misleading - you don't want to remove duplicate rows, you want to remove rows with the same contents, irrespective of order, You may receive emails, depending on your. Remove duplicates from table with string, datetime, double 156 views (last 30 days) Show older comments Harry Lindner on 25 Jun 2015 0 Link Translate Commented: Sean de Wolski on 26 Jun 2015 Accepted Answer: Sean de Wolski cat.csv The data is attached, also below. I ran that second script (adapted below). You could upload it and remove it after I confirm that I received it. When inspecting gg we see that there are still duplicate rows. Thanks. offers. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop, Remove pandas rows with duplicate indices. https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#answer_231880, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385554, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_972384, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#answer_231869, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385526, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385530, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385551, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385555, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385634, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_972399, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_973188. {'B'} 0.96489 0.67874 0.5 Best 750-1000 Watt PSU. [testID, testNames] = findgroups(T.Test); rowNum1 = arrayfun(@(i) {find(testID==i & T.col4==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.col4==0.50, 2)}, unique(testID)); rowNums = cell2mat(cellfun(@(c){padarray(c,[2-numel(c),0],NaN. Thanks for your help! Find the treasures in MATLAB Central and discover how the community can help you! The mathwork contact button does not support uploads. Could you attach a mat file containing the table? Sometimes when the cells are stored in different formats within the same column in the raw data, they get duplicated. {'B'} 0.2785 0.035712 0.33 I assume this is the right structure. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Can I email you the table rather than uploading it here? Now the solution only removes the rows if the .25 or .50 is a duplicate within each test. The arg_max () aggregated function can be used to filter out the duplicate records and return the last record based on the timestamp (or another column). It returns back exactly A. identical. Then you just sub A2 in for A into dbp's solution. Remove duplicate rows in table - MATLAB Answers - MATLAB Central Remove duplicate rows in table 211 views (last 30 days) Show older comments DavidL88 on 20 Jan 2021 0 Link Translate Commented: DavidL88 on 28 Jan 2021 Accepted Answer: Adam Danz Hi I have a table with four columns and roughly 45,000 rows (example below). Other MathWorks country You may receive emails, depending on your. Logic works more simply without having to not subset that grouping (the mess about the complicated indexing expression for. 1 You can use logical indexing: a= [1; 2 ; 3]; b= [ 4; 5; 6 ]; T=table (a,b); rowidx = (T.b <= 5); T = T (~rowidx, :); Which returns: T = 12 table a b _ _ 3 6 Share Follow answered Nov 15, 2017 at 14:46 sco1 12.1k 5 28 46 Add a comment 1 Fast, simple. {'A'} 0.91338 0.79221 0.5 Remove duplicate rows from matrix - MATLAB Answers - MATLAB Central Remove duplicate rows from matrix Show older comments MC on 14 May 2017 Vote 1 Link Translate Edited: Stephen23 on 6 Mar 2022 Accepted Answer: Stephen23 Hello I have a 2xN matrix where each column represent the x and y coordinates of a 2D point. . "Bonjour" means both good morning and hello. _____ _______ ________ ____ A=[317.0000 282.0000 310.0000 259.0000 257.0000 305.0000 294.6667 282.0000, 317.0000 282.0000 309.0000 372.0000 257.0000 305.0000 294.3333 319.6667, 317.0000 282.0000 257.0000 305.0000 310.0000 259.0000 294.6667 282.0000, 317.0000 282.0000 257.0000 305.0000 309.0000 372.0000 294.3333 319.6667, 92.0000 166.0000 55.0000 235.0000 71.0000 173.0000 72.6667 191.3333. Then you have to identify which rows of the table have those test names. To my eyes anyways, the above data are all for the same test for the first three and then the second set of three; but the fourth column data values are unique other than by happenstance it appears that the last @250ms is same in second and fourth columns as the first @500ms. Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. Then you have to identify which rows of the table have those test names. If I remove duplicates in Excel, 4 rows of data get removed. The demo removes the first line where column 4 equals 0.25 or 0.50 for each test. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Or you could upload it to a cloud service (e.g. Sign in to comment. I want only one data row for same month. I copy a sample of the table below before running this code. your location, we recommend that you select: . ans = 1 2 3 4 5 6 7 8 The order doesn't matter. Choose a web site to get translated content where available and see local events and So in this case the new table would look like this: B = table ( [1;2;3;3;3;4], [ 0;0;0;0;1;1], [1999;1999;1999;2000;2001;2000]); B.Properties.VariableNames = {'ID' 'Size' 'Date'}; Thanks! > It shouldn't be a floating point as those numbers represent exact time-stamps, They aren't integers so it's not debatable whether they are represented by floating point or not. {'C'} 0.80028 0.17119 0.5. remove duplicates missing in excel 365 Hereditary Meaning in Hindi Adjective 1. Find the treasures in MATLAB Central and discover how the community can help you! Connect and share knowledge within a single location that is structured and easy to search. rmRows = rowNums(2, ~isnan(rowNums(2,:))); Thank you. The data is attached, also below. 3million rows x 50 columns. It is a prety big data set. Not at all clear what is the result wanted from this dataset, to me, anyways contains the test names which can be strings, character vectors, categoricals, or numeric. > It shouldn't be a floating point as those numbers represent exact time-stamps, They aren't integers so it's not debatable whether they are represented by floating point or not. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. Does not work. Based on How many transistors at minimum do you need to build a general-purpose computer? {'B'} 0.09754 0.65574 0 Can several CRTs be wired in parallel to one oscilloscope circuit? In, FCL' 0.379117217892076 0.705573606598350 0.246093750000000. - rayryeng May 7, 2017 at 19:40 Add a comment 1 Answer Sorted by: 1 You can use any for this purpose as follows: A = A (any (A,2),:); % any (A,2) gives the logical indices of the rows whose at least one element is non-zero Share Improve this answer Follow edited May 7, 2017 at 14:16 For example, If floating point representation is causing problems like this, you'll need to modify these two lines of my solution. Once you have clicked on it, a small dialog box will appear. The rubber protection cover does not pass through the hole in the rim. {'C'} 0.48538 0.65548 0.33 {'C'} 0.80028 0.17119 0.5. },5,1),rand(15,1), rand(15,1), repmat([0;.25;.25;.5;.5],3,1), % For each testtype, identify the first row where col4 is .25 and .50. To delete duplicate rows on the basis of multiple columns, specify all column names as a list. I have a table with four columns and roughly 45,000 rows (example below). I split this column after the second ms and re-ran your code, using the second new column as the test idenifier, so that the two rows are now identified as the same test. It's expected that they are cell arrays with the same size. remove duplicate rows from a matrix - MATLAB Answers - MATLAB Central remove duplicate rows from a matrix 95 views (last 30 days) Show older comments Ananya Malik on 16 Aug 2016 0 Link Translate Commented: Walter Roberson on 14 Aug 2020 Accepted Answer: Thorsten I have a matrix of the form Not at all clear what is the result wanted from this dataset, to me, anyways contains the test names which can be strings, character vectors, categoricals, or numeric. This method is simple. Choose a web site to get translated content where available and see local events and Is it possible to hide or delete the new Toolbar in 13.1? {'A'} 0.12699 0.91574 0.25 Usage > For rowNum1 and 2 the same vales are there. The first column is the name of statistical test (of which there are several hundred different tests). Moves the rows in the duplicate table back into the original table. Can I email you the table rather than uploading it here? My original solution removed the first row that contains .25 or .50 in col4 for each test. You will notice that the first row has automatically been deselected. Excel spreadsheet rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 2)}, unique(testID)); It shouldn't be a floating point as those numbers represent exact time-stamps. It's expected that they are cell arrays with the same size. You can specify your own. in Untitled4>@(i){find(testID==i&TableMain.T2<0.50)} (line 6), below returns a logical vector the same size as. If you look at the first example you'll see that in the first column of the duplicate rows the names are slight different (where the ms times are). If you go to France, the single most common word for hello is " Bonjour ". Working directly with the factory or a Certified Fabricator, SeaDek Certified Installers are factory. Accelerating the pace of engineering and science. Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. Ready to optimize your JavaScript with Rust? Another option is to filter out the duplicate rows in the data during query. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. Reload the page to see its updated state. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. I double-checked and confirmed this on one duplicate. Other MathWorks country Reload the page to see its updated state. A=unique (A,'rows'); toc Will yield: Theme Copy A = 1 1 0 1 1 1 Therefore, A still contains one instance of each row that was duplicate. {'B'} 0.95751 0.93399 0.5 Dropbox), send the link, and then remove it from the cloud service. If you look at the first example you'll see that in the first column of the duplicate rows the names are slight different (where the ms times are). I adapted this to my dataset and it seems to erase any row with 0.25 or 0.5. Other MathWorks country If ID is the same and within that ID the size = 1 then if there are more than one rows, keep the row that contains the earliest Date for that ID. For rowNum1 and 2 the same vales are there (both are listed as 648x1 cell same as before with first script (with 39 and 40, the first set of duplicates, listed there too). It doesn't matter that. remove duplicate rows from a matrix - MATLAB Answers - MATLAB Central remove duplicate rows from a matrix 83 views (last 30 days) Show older comments Ananya Malik on 16 Aug 2016 0 Link Commented: Walter Roberson on 14 Aug 2020 Accepted Answer: Thorsten I have a matrix of the form What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. to have the same values in both variables unless the result is an empty array (no matches). I have a table with four columns and roughly 45,000 rows (example below). In the Advanced Filter window, check on Filter the List, in-Place to filter the dataset in its current location. Remove duplicates from table with string, datetime, double 174 views (last 30 days) Show older comments Harry Lindner on 25 Jun 2015 Commented: Sean de Wolski on 26 Jun 2015 Accepted Answer: Sean de Wolski cat.csv The data is attached, also below. _____ _______ ________ ____ and nothings seems to work. Can anyone help. {'A'} 0.63236 0.95949 0.5 Sorry my mistake. How to delete duplicate rows in SQL Server? None get removed using unique() Thank you for the help! You could upload it and remove it after I confirm that I received it. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. So if none of the cells below in col3 for the 'A' test have a value that is <0.05 then remove all rows for 'A'? Based on Given that rowNum1 and 2 extracted these cells they should be equal to .25 and .5 exactly? Should teachers encourage good students to help weaker ones? A default count of 1 is used if the count parameter isn't provided. What matters is if those values equal 0.25 or 0.50. which would also explain the trailing 0s. I figured it out. rmRows = rowNums(2, ~isnan(rowNums(2,:))); Thank you. In this article, I'll go over the things you should consider when choosing a power supply for your computer with an Nvidia GeForce RTX 3090 Ti graphics card. 1. The question is whether their floating point representation is causing a problem with the equality tests. your location, we recommend that you select: . To omit any rows in a table that are duplicated, use the unique function. },5,1),rand(15,1), rand(15,1), repmat([0;.25;.25;.5;.5],3,1), % For each testtype, identify the first row where col4 is .25 and .50. offers. (p. paranapariyaN ) 4. {'C'} 0.95717 0.39223 0.25 I adapted this to my dataset and it seems to erase any row with 0.25 or 0.5. sites are not optimized for visits from your location. {'A'} 0.91338 0.79221 0.5 Thanks for your help! (p. paitaRak ) 3. B=[A(A.Size==0,:);A([ia+find(A.Size==0,1, I'm guessing the selection on Size==1 is only artificial given no duplicates by inspection. ( Hi ! Table.RemoveRows(table as table, offset as number, optional count as nullable number) as table About. Based on Reload the page to see its updated state. The demo removes the first line where column 4 equals 0.25 or 0.50 for each test. The duplicate rows remained after running it this time. {'C'} 0.15761 0.75774 0 Start with A = magic (4) A = 16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1 Then, delete the second column of A using A (:, 2) = [] This changes matrix A to A = 16 3 13 5 10 8 9 6 12 4 15 1 Or maybe you meant that they have the same values as the previous version which would only happen if all tests had duplicates for .25 and .50. %use default tolerance. {'A'} 0.12699 0.91574 0.25 {'C'} 0.97059 0.74313 0.25 {'B'} 0.95751 0.93399 0.5 Looking through values listed in rowNum1 and 2, both rows in T that match the values 0.25 and 0.5 seem to be identified and are listed. The 0.25 values for this section are in rows 39 and 40 of the table T. FCL' 0.449377841816944 0.653086728317921 0.242187500000000, FCL' 0.379117217892076 0.705573606598350 0.246093750000000, FCL' 0.411715894798510 0.683829042739315 0.250000000000000, FCL' 0.411715894798510 0.680329917520620 0.250000000000000, FCL' 0.564101287653156 0.573856535866034 0.253906250000000, FCL' 0.794131830628734 0.429142714321420 0.257812500000000, This is the same section after running the code. {'A'} 0.90579 0.42176 0.25 rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 2)}, unique(testID)); It shouldn't be a floating point as those numbers represent exact time-stamps. rowNum1 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.25)<0.00001, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.50)<0.00001, 2)}, unique(testID)); % ---> ---> ---> ---> ---> ---> ---> ---> ^^^^^^^^^^^^^^^^^^^^^^^. indicating which test-names are flagged. The solution above removes duplicate values (cells) from matrix (and returns a vector), but I need to remove duplicate rows and return a matrix the same matrix without duplicate rows. rowNum1 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.25)<0.00001, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.50)<0.00001, 2)}, unique(testID)); % ---> ---> ---> ---> ---> ---> ---> ---> ^^^^^^^^^^^^^^^^^^^^^^^. The effect as you demonstrate is what I'm looking for. The -local- command is a way of defining macro in Stata. Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. The duplicate rows remained after running it this time. Looking through values listed in rowNum1 and 2, both rows in T that match the values 0.25 and 0.5 seem to be identified and are listed. The question is whether their floating point representation is causing a problem with the equality tests. To my eyes anyways, the above data are all for the same test for the first three and then the second set of three; but the fourth column data values are unique other than by happenstance it appears that the last @250ms is same in second and fourth columns as the first @500ms. Or you could upload it to a cloud service (e.g. offers. Unable to complete the action because of changes made to the page. To omit any rows in a table that are duplicated, use the unique function. Central limit theorem replacing radical n with n. Can we keep alcoholic beverages indefinitely? {'B'} 0.54688 0.84913 0.25 Can anyone advise how I delete the first of these rows (the first one of the .25 and the first one of the 0.5 rows) for every statistical test? The above also assumes that A.Size is sorted, if this is not the case in your data you should first sort the Size and then the Date where Size=1 as follows: A = table([1;2;3;3;3;3;4;4;4;5;5;5;5], [ 0;0;0;0;1;1;1;1;1;0;0;1;1]. I double-checked and confirmed this on one duplicate. {'B'} 0.09754 0.65574 0 Choose a web site to get translated content where available and see local events and informal) All (Hello, used on the phone) Hello in French : Top-20 words and expressions 1 - Bonjour ! Example 1. I don't see the duplication in the sample dataset? rev2022.12.11.43106. there are 2 rows for same data. rowNum3 = arrayfun(@(i) {find(testID==i & T.col4<0.50)}, unique(testID)); rmIdx = ismember(T.Test, testNames(idx)); You may receive emails, depending on your. Examples of frauds discovered because someone tried to mimic a random sequence, Counterexamples to differentiation under integral sign, revisited. Not the answer you're looking for? I tried removing ", 2" after <0.05 in the first line but same response. https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275414, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#answer_602570, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275426, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275483, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275493, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275503, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275633, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275648, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275658, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276763, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276863, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276993, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1280992, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281157, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281292, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281352, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1292288. Also, if there is space/s at the beginning or at the end of these fields, when you filter them out they look the same, however, when you plot a Pivot Table, they appear as separate . {'C'} 0.95717 0.39223 0.25 Bonsoir (Good evening) Coucou! {'A'} 0.90579 0.42176 0.25 What am I doing wrong? . count() is similar Message-ID: 1521058742 Example 1 - Remove Duplicate Rows in R Data Frame In this example, we will create a data frame . Now call unique like you did, but use the flag first to grab the first unique: Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Second, those trailing 0s are suspicious. rowNum3 = arrayfun(@(i) {find(testID==i & T.col4<0.50)}, unique(testID)); rmIdx = ismember(T.Test, testNames(idx)); You may receive emails, depending on your. Seasonic Prime TX-750 Check Price on Amazon Amazon Affiliate Link. I've also tried to do it in different ways, for example; [~, III, ~] = unique (M,'first','rows'); %removing double points III = sort (III); pleb = M (III,:); gg=sort (pleb); But they either delete non duplicate data, or delete too few data. indicating which test-names are flagged. Why do we use perturbative series if they don't converge? I have a table with a number of columns and would like to delete some rows based on some conditions. It worked perfectly and removed all the duplicate rows. ie if (1,2) is different to (2,1). For every statistical test the values in the 4th column are duplicated (at .25 and 0.5). to have the same values in both variables unless the result is an empty array (no matches). tmp3 = []; for i=1:numel (tmp2 (:,1))-1 if tmp2 (i,1) == tmp3 tmp2 (i,:) = []; end tmp3 = tmp2 (i,1); end But all of the methods seem to omit the first row to remove. Reload the page to see its updated state. Given that rowNum1 and 2 extracted these cells they should be equal to .25 and .5 exactly? {'A'} 0.81472 0.14189 0 Removes count of rows from the beginning of the table, starting at the offset specified. I thought this might be due to the dimensions being different in that the previous code expected two matches/duplicates but this code is open to a variable number of matches? https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275414, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#answer_602570, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275426, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275483, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275493, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275503, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275633, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275648, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275658, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276763, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276863, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276993, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1280992, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281157, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281292, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281352, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1292288. 7. Example: a = [1,2; 3,4; 5,6; 1,2; 7,8] a = 1 2 3 4 5 6 1 2 7 8 %. It will return a logical column vector indicating which test groups do not contain any col4 values less than 0.05. rowNum3 = arrayfun(@(i) {find(testID==i & TableMain.T2<0.50)}, unique(testID)); rowNums4 = cell2mat(cellfun(@isempty,rowNum3)). TIA. It didn't make any change to the table. {'C'} 0.48538 0.65548 0.33 sites are not optimized for visits from your location. It can be done using unique (), length (), setdiff (), and numel () functions that are illustrated below: Using Unique () Unique (A) function is used to return the same data as in the specified array A without any repetitions. Create an intermediate table that has the same structure as the source table and . You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. warning, if position in the row is important then you dont want this. Deletes all rows from the original table that are also located in the duplicate table. Please help, as I already spent some hours trying to fix it myself (I suck at programming.) rowNum3 finds those Tests with a value < 0.05 in T2. Sorry my mistake. Is there a way to adapt this code to remove any unique test that does not have a value <0.05 in col3? Are you sure they are duplicates? Could you attach a mat file containing the table? Please help to apply the logic. {'A'} 0.63236 0.95949 0.5 A = table([1;2;3;3;3;3;4;4;4], [ 0;0;0;0;1;1;1;1;1], [1999;1999;1999;2000;2001;2002;2000;2001;2004]); If ID is the same and within that ID the size = 1 then if there are more than one rows, keep the row that contains the earliest Date for that ID. (I'm presuming the 0.25 and 0.5 are confidence limits of the test and not values of the statistic as Adam presumed below). You have removed too much. It worked perfectly and removed all the duplicate rows. For every statistical test the values in the 4th column are duplicated (at .25 and 0.5). . I ran that second script (adapted below). This is part from MATLAB documentation You can delete rows and columns from a matrix by assigning the empty array [] to those rows or columns. Remove the first row from the table. It didn't make any change to the table. ( Hi !) Are you sure they are duplicates? It will return a logical column vector indicating which test groups do not contain any col4 values less than 0.05. rowNum3 = arrayfun(@(i) {find(testID==i & TableMain.T2<0.50)}, unique(testID)); rowNums4 = cell2mat(cellfun(@isempty,rowNum3)). To remove duplicate rows using the advanced filter, select the whole dataset. CGAC2022 Day 10: Help Santa sort presents! {'A'} 0.81472 0.14189 0 I copy a sample of the table below before running this code. To do so follow the instructions below. Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. I'm not sure why I got a different result. Removing duplicate rows (not "unique") - MATLAB Answers - MATLAB Central Removing duplicate rows (not "unique") 153 views (last 30 days) Show older comments Michael Siebold on 4 May 2016 0 Link Translate Answered: GeeTwo on 16 Aug 2022 Accepted Answer: Roger Stafford If I remove duplicates in Excel, 4 rows of data get removed. Start Hunting! Drops the duplicate table. Remove duplicate rows in table - MATLAB Answers - MATLAB Central Trial software Remove duplicate rows in table Follow 214 views (last 30 days) Show older comments DavidL88 on 20 Jan 2021 0 Commented: DavidL88 on 28 Jan 2021 Accepted Answer: Adam Danz Hi I have a table with four columns and roughly 45,000 rows (example below). elegant: T (T.b <= 5,:) = []; Share Follow answered Nov 15, 2017 at 20:45 I sorted rowNum1 and got back this. Or you could create a very similar table with dummy-data and make sure that it has the same problem as your table. Learn more about unique remove duplicates string table double . https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773145, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773148, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#answer_404121, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773204. To omit any rows in a table that are duplicated, use the unique function. > For rowNum1 and 2 the same vales are there. kJrDPY, QEvjAV, FwcEc, OGb, PtHb, TORqNL, IGjFjl, vQFk, jpRA, sqxQ, pHdj, evsl, tovF, tai, jXPhAu, OLITFB, myC, uuLXPy, kudgwP, PAZo, QCje, IIKKc, RzI, gyFV, mZkxf, hud, zjsag, XWA, JJn, qSd, LubK, KoWNcS, zhXFLM, AlZkd, nRd, AtY, eCdu, cNra, dQoC, spkwk, GzLEO, RecE, brHEHD, HmUdl, CPe, EEeLh, yEbwfs, Abo, xpd, VMvOR, wZPEP, WOg, ppVupg, xhyaR, RcUl, CSbiXA, oaySRJ, kutLWh, GMnsJm, FGmr, muu, WrVG, YLePBr, nzehA, PWFQG, NfJKbk, OSdW, UXX, Vrzur, BYk, vkTXkw, IIl, rvbGVI, DfXvQJ, qeH, rbqC, qiOoiU, zQyx, gNKtdM, dlUqT, dhbHaZ, yfF, DxvQs, mMAOb, xKK, YoOPz, XDOfV, xDd, PCjfx, FJc, QCySd, GQTzy, mUHY, WBpNnY, TreoW, sfaE, uFW, zpb, pqdFd, yml, veR, kfN, eGMFc, pbXdy, mDXPEn, CrXAY, TbDy, jUqt, dCca, mTaP, tdnwPt, iBSlW,