Accelerating the pace of engineering and science. Counterexamples to differentiation under integral sign, revisited. Unable to complete the action because of changes made to the page. How do you replace blank cells with 0 in MATLAB? I presume this is because I have empty fields (in the . A simpler solution very specific to your problem is to convert the cell directly into a matrix: It converts to a normal matrix, and while doing this it removes the empty cells. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Asking for help, clarification, or responding to other answers. for eg: % 15 cell array -- [] [] [13 double] [] [15 double]. But the code is not working for cell with empty cells in at sub levels, for example. cell2mat does not accept objects or nested cells within C. Extended Capabilities Tall Arrays Calculate with arrays that have more rows than fit in memory. https://www.mathworks.com/matlabcentral/answers/98175-can-i-convert-empty-strings-to-nans-automatically-in-a-cell-array, https://www.mathworks.com/matlabcentral/answers/98175-can-i-convert-empty-strings-to-nans-automatically-in-a-cell-array#answer_107525. When would I give a checkpoint to my D&D party that they can return to if they die? Edit: I tried stepping into the cell2mat function to see what was happening and found the step where the problem happens. Mathematica cannot find square roots of some matrices? How do you turn a cell array into a matrix in Matlab? I have a 33845x16 matrix of all numbers (except for some blank cells) and finding the empty cells takes 500 seconds (! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Choose a web site to get translated content where available and see local events and cell2mat does not accept objects or nested cells within C. Extended Capabilities Tall Arrays Calculate with arrays that have more rows than fit in memory. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. From R2014b, axes handles are objects and the error would appear. https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_429899, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430002, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#answer_255354, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430001, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430011, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430012, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430013, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430050, https://www.mathworks.com/matlabcentral/answers/325726-how-to-assign-a-nan-to-an-empty-cell-in-a-cell-array-of-cell-array-of-matrix#comment_430055. your location, we recommend that you select: . Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? Oh, good point about the handles being numeric before! it means"Non-scalar arrays of function handles are not allowed; use cell arrays instead. I would not have expected that line to ever work. cell2mat (MATLAB Functions) Convert cell array of matrices into single matrix Syntax m = cell2mat (c) Description m = cell2mat (c) converts a multidimensional cell array, c, with contents of the same data type into a single matrix, m. The contents of c must be able to concatenate into a hyperrectangle. Not the answer you're looking for? "it is not skipping the empty or NAN cell, instead assigns zero to it. You may receive emails, depending on your. . Does illicit payments qualify as transaction costs? disp(c); us The above takes AGES if the cell matrix is large. When I import a lot of data (from more than 10 .csv, in my case I have 11 files), strain_trans_data = cell2mat(strain_trans_data); and strain_ax_data = cell2mat(strain_ax_data); work fine, they just convert the cell arrays to matrices. Do bracers of armor stack with magic armor enhancements and special abilities? It is wrong in multiple ways. If you want to change NaN to 0: Thank u Guillaume. As per James' comment it would probably be more useful to fix your thresholding code so it works on empty cells as well. The code worked like a charm. From R2014b, axes handles are objects and the error would appear. Then, of course, you can reconvert it to a cell array with the following command: a = mat2cell (cleanedA, [1 1], [1 1]) Its not generic, but for the example posted it is the simplest solution I can think of. If the absolute values in the cells are less than a threshold value say 5, i want to assign a zero to it. However all code example that I found collapse the matrix to a vector, which is not what I want. 9906 Excel matlab CSV excel . but it is not skipping the empty or NAN cell, instead assigns zero to it. Due to the removal, cell dimensions are resized. . Cell arrays commonly contain either lists of text, combinations of text and numbers, or numeric arrays of different sizes. Is Kris Kringle from Miracle on 34th Street meant to be the real Santa? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. ", Of course, it does. Sign in to answer this question. Does illicit payments qualify as transaction costs? offers. Is it appropriate to ignore emails from a student asking obvious questions? That can be as simple as--after the fopen, of course: Theme Copy >> fgetl (fid); % get, throwaway the header row >> while ~feof (fid) % until run out of data d=cell2mat (textscan (fid,'',5,'delimiter',',','collectoutput',1)); d (:,14).',end ans = 0.0079 0.0078 0.0076 0.0070 0.0071 ans = 0.0072 0.0074 0.0075 0.0088 0.0087 ans = It looks like your cell array contains axes handles. As mentioned by another community member, "cell2mat" works without errors for the scenario you described. Based on Basically i wanted to do a basic threshold operation on a cell array of cell array of matrix . Did neanderthals need vitamin C from the diet? Accelerating the pace of engineering and science. . But I am not able to perform this operation. The CELLFUN command provides this functionality: % Return a boolean array named 'empties' (with same dimensions as cell array, % 'A') with true for each empty element and false otherwise, % Now change all the empty cells in A from empty strings '' to double NaN, You may receive emails, depending on your. The elements of the cell array must all . C as a 4x4 cell array, A is a 4x3 numeric array. Since there are 11 sets of data, the cell arrays are nx11 and the final matrices are nx11. Input cell array, in which all cells contain the same data type. This is not expected to fix the problem: this is expected to display output that you will copy and paste here and that will help me diagnose the problem. How can I index a MATLAB array returned by a function without first assigning it to a local variable? Assuming that each cell contains a single axes handle, or row vectors of axes handles, then: If the cells contain column vectors/of axes handles: If they contain 2D or ND matrix, it will be more complicated. I have mentioned a coarse threshold operation, to apply to the cell. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? What is strange is that both strain_trans_data = cell2mat(strain_trans_data); and strain_ax_data = cell2mat(strain_ax_data); work fine, it's only the last conversion that gives a problem. I am able to do it in the first level based on previous discussion in the forum. it just has a new error. Due to the removal, cell dimensions are resized. It is not surprising that it does not work in current releases. Any disadvantages of saddle valve for appliance water line? "how could i do? Put in a line of code that asks it to celldisp(ax_cell) and show us the results. How can I use cell2mat with empty cells and filled cells. Also the first function is returning the error "Error: The expression to the left of the equals sign is not a valid target for an assignment." for n=1:length (mycellarray) if isempty (mycellarray {n}) mycellarray {n}=0; end end mylogicalarray=logical (cell2mat (mycellarray)); which works, but uses loops. Reload the page to see its updated state. >> c = {{[],[1,2]},{[],[],[2,4,5]},{[],[2,3,4,6,7],[]}}; @Guillaume: I added the missing parenthesis to your answer as well. A simpler solution very specific to your problem is to convert the cell directly into a matrix: cleanedA = cell2mat(a); It converts to a normal matrix, and while doing this it removes the empty cells. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Some of the cells are empty cells, while others have values. How do we know the true value of a parameter, in order to check estimator properties? Assuming it's not needed, the function could simply be: which works on any size matrices, including empty ones. Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate? cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. 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"? Unable to complete the action because of changes made to the page. sites are not optimized for visits from your location. Cell2mat for cell arrays with numeric strings of different size in Matlab How can Iconvert Matlab code into python :- For UT (Universal Time) to LST (Local Sidereal Time) time conversion with incrementing date time Matlab symbolic function conversion without dot for matrix operation cell2mat conversion in MATLAB (For ismember) I followed it.It shows the property of ax_cell. rev2022.12.11.43106. tf = cellfun('isempty',pathrisk) % true for empty cells. A cell arrayis a data type with indexed data containers called cells, where each cell can contain any type of data. Disconnect vertical tab connector from PCB, PSE Advent Calendar 2022 (Day 11): The other side of Christmas. Making statements based on opinion; back them up with references or personal experience. Could there be a problem with the data in the cell array? Can we keep alcoholic beverages indefinitely? https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_800700, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_800704, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_800895, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801000, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801001, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801012, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801019, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801240, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801321, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801322, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_806965, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_807224, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#answer_416990, https://www.mathworks.com/matlabcentral/answers/506916-cell2mat-does-not-support-cell-arrays-containing-cell-arrays-or-objects#comment_801269. Ready to optimize your JavaScript with Rust? Direct link to this answer. on each step of the loop. Not the answer you're looking for? It converts the multidimensional matrix into cell-matrix without affecting data or elements of the input matrix. Unable to complete the action because of changes made to the page. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? . A = cell2mat(C) converts a cell array into an ordinary array . offers. matlab cell[]MATLAB cell - Providence - struct2cell cell2mat iscell 3-28 cellfun offers. Creating new matrix from cell with some empty cells disregarding empty cells; Converting a matrix loop into an equivalent function; Converting an image (3D array) into a 2D matrix in a specific order; Converting matrix data representation into meshgrid; Converting a scipy.sparse matrix into an equivalent MATLAB sparse matrix Find centralized, trusted content and collaborate around the technologies you use most. Asking for help, clarification, or responding to other answers. The code is working for faster than the one i had previously stated. I want to remove all empty cells at the bottom of a matlab cell array. CA = cell (n) The syntax is used to return a cell array CA, of size n-by-n creating matrices with empty value. If the absolute values in the cells are less than a threshold value say 5, i want to assign a zero to it. Given below are the syntax of Matlab Cell: Syntax.Description. Without being able to see the cell array that you input into cell2mat I can only guess, but my guess would be that you have a column in the cell array with empty cells. Find centralized, trusted content and collaborate around the technologies you use most. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Matlab fwrite binStr = dec2bin (D) returns the binary, or base-2, representation of the decimal integer D. The output argument binStr is a character vector that represents binary digits using the characters 0. binVal = decimalToBinaryVector(decimalNumber) converts a positive decimal number to a binary vector, represented using the minimum. In the examples that follow, we use the IF and SUM functions together. Input cell array, in which all cells contain the same data type. Matlab - How can I transform a set of cell arrays into an array that allows indexing? Based on c={{[] [1 2]} { [] [] [2 4 5]} {[] [2 3 4 6 7] []}}, When i follow the previous step I am getting the error "Function 'subsindex' is not defined for values of class 'cell'.". then for some reason it changes to a nx10 double. hello guys.Can you understand Chinese?The sentence in blue means that "CELL2MAT does not support cell arrays containing cell arrays or objects".I never see any error like this.I translated it into English by Google Translator.So it may be not accurate.Do anyone experience this error.Could you please tell me how to do?By the way,my MATLAB version is R2019b,the code is earlier.So i think whether the old version and the new version are incompatible.I think the code itself don't have grammatical errors.Thank you for your answer! cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. Thanks for contributing an answer to Stack Overflow! The best tech tutorials and in-depth reviews; Try a single issue or save on a subscription; Issues delivered straight to your door or device Now for this example how can i do the same process? Choose a web site to get translated content where available and see local events and By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. A = rand (32,32,25*25); B = num2cell (A, [1 2]); B = reshape (B, [25 25]); C = cell2mat (B); size (C) For troubleshooting, you can start by checking if all the cells are indeed 32x32 arrays. All contents of the input cell array must be of the same data type." I had to write a function that converted each element to a string, whether it was numeric, or a NaN. Please also show the code you are currently using to do the threshold testing & 0 assigning. I have just written a coarse threshold function and applied to my data using cellfun. Find the treasures in MATLAB Central and discover how the community can help you! 'mat2cell' function is a very effective command to adjust dimensions of a multidimensional matrix. For some reason, load_data = cell2mat (load_data); instead eliminates one column so the initial cell array is nx11 and the final matrix is nx10 instead. We can use any type of input to use this function such as arrays, vector, or multidimensional matrices. AND the error happens just when i open a figure file.if i don't open it the error won't happen. Replace elements of a vector with different probability for 0 to 1, and 1 to 0 in MATLAB; Remove empty cells in 2,n cell-array in MATLAB; replace string with operator and macros in matlab; Problems with empty cell in a large matrix: MATLAB; How to prevent matlab from automatically separating a string with commas to different cells in csv? res=cell2mat (ses1_results); res (res==0)= []; returns Theme Copy res = 1.1920 0.5678 1.0000 NaN 1.0000 >> Or, of course, following the comment; you've already got a cell array; just remove the cells that are zero. MathWorks is the leading developer of mathematical computing software for engineers and scientists. There is a function that generalizes the removing specific row/columns from a cell, which is called fun_removecellrowcols. conversion. (Matlab), Creating new matrix from cell with some empty cells disregarding empty cells, Remove empty cells in 2,n cell-array in MATLAB, If he had met some scary fish, he would immediately return to the surface. Share Follow Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Replace empty cells with logical 0's before cell2mat in MATLAB. does not support converting a cell array containing objects into a matrix. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. There is a function that generalizes the removing specific row/columns from a cell, which is called fun_removecellrowcols. In addition, you can. Why is there an extra peak in the Lomb-Scargle periodogram? Not sure if it was just me or something she sent to the whole team, Radial velocity of host stars and exoplanets. Your function. To learn more, see our tips on writing great answers. CGAC2022 Day 10: Help Santa sort presents! You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. But of course, the loop isn't needed at all. So if we convert empty cell to NAN this problem can be solved. Making statements based on opinion; back them up with references or personal experience. You've coded your function to make it so. Solution 3. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Books that explain fundamental chess concepts, Disconnect vertical tab connector from PCB. Learn more about cell array , concatenation MATLAB . Hilfe bei der Programmierung, Antworten auf Fragen / Matlab / Cell2mat fr ungleiche Lngen - MATLAB - matlab Ich habe ein einfaches 2D-Zellenarray, das Daten enthlt in Form von: Was ist die einfachste Mglichkeit, cat / cell2mat zu verwenden, wenn jede Spalte ungleich lang sein kann? Try this. Hence why Walter asked you to run the. cell2mat eliminating a column from cell array when performing conversion. Other MathWorks country Find the treasures in MATLAB Central and discover how the community can help you! Is this an at-all realistic configuration for a DHC-2 Beaver? Any disadvantages of saddle valve for appliance water line? I tried with other sets of data (smaller than 10) and this problem seems to only occur in this instance. I used the following code to recreate your scenario with the same dimensions (similar to the code used by @DGM) . CSV , . The code imports data from some .csv files which I analyze by performing a linear regression. If you want to delete all the rows in your cell array where all cell are empty, you can use the follwing: The reason it didn't work in your formulation is that if you index with an array, the output is reshaped to a vector (since there is no guarantee that entire rows or columns will be removed, and not simply individual elements somewhere). Accelerating the pace of engineering and science. Ready to optimize your JavaScript with Rust? Basically i wanted to do a basic threshold operation on a cell array of cell array of matrix . Reload the page to see its updated state. one of the solutions c={ 1 2 [] [] 3 4 c(ix)={nan}; % -or- any other marker. Why does the USA not have a constitutional court? but I'm not sure if it will be general enough for you - will you always have complete rows of empty cells at the bottom of your array? For example, if the cell array has 10 cells but 2 cells are empty, then when this cell array is passed into CELL2MAT, the output matrix will only have 8 elements. Count how often multiple text or number values occur by using the SUM and IF functions together. Error in cell2mat (line 87) m = cat (2,m {:}); To use cell2mat, all cells must be the same size and same class Azzi Abdelmalek on 19 Jul 2013 Edited: Azzi Abdelmalek on 19 Jul 2013 Theme Copy A (cellfun ('isempty',A))= {0} %or Theme Other MathWorks country Since there are 11 sets of data, the cell arrays are nx11 and the final matrices are nx11. Currently yes, but in general I can no be sure. confusion between a half wave and a centre tapped full wave rectifier. I pass in a cell array to the CELL2MAT function but the output matrix has less elements than the cell array. matlab matrix cell-array is-empty Share Improve this question Follow edited Apr 21, 2015 at 2:30 niton 8,315 19 31 51 asked Apr 12, 2010 at 17:29 Doresoom 7,378 14 46 61 Add a comment Refer to sets of cells by enclosing indices in smooth Connect and share knowledge within a single location that is structured and easy to search. cell2mat with different data types and empty cells cell2mat with different data types and empty cells 1121 views Jerry Martinez Jan 17, 2013, 4:12:07 PM to I was reading an old post and. Thanks for contributing an answer to Stack Overflow! Why would Henry want to close the breach? It also leaves NaN alone. You may receive emails, depending on your. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. The simple way to work around this problem is to do: Which would also fix two other problems with the loop: 1) your loop grew the. I also don't understand the purpose of the. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. A = rand (32,32,25*25); B = num2cell (A, [1 2]); B = reshape (B, [25 25]); C = cell2mat (B); size (C) pathrisk = {1 [] 5 3 [] [] 9} % example data. Preallocating Cell Arrays with the cell Function The cell function allows you to preallocate empty cell arrays of the specified size. To perform the linear regression and to plot the data, I need to convert the cell arrays to matrices. McMa 1554 Some more answer related to the same question Theme Copy >> ses1_results (~cellfun (@ (v)isequal (v,0),ses1_results)) ans = 51 cell array { [ 1.1920]} { [ 0.5678]} { [ 1]} 1 excel ''' '' 5 G . Then, when I pass the cell array through my "string converter", cell2mat complains about the cells not being consistent. 6 The CELLFUN command provides this functionality: Theme Copy % Return a boolean array named 'empties' (with same dimensions as cell array % 'A') with true for each empty element and false otherwise empties = cellfun ('isempty',A); % Now change all the empty cells in A from empty strings '' to double NaN A (empties) = {NaN}; Sign in to comment. I used the cellfun to apply the function to a cell. Indeed cell2mat does not support converting a cell array containing objects into a matrix. ST_Tesselate on PolyhedralSurface is invalid : Polygon 0 is invalid: points don't lie in the same plane (and Is_Planar() only applies to polygons). I pass in a cell array to the CELL2MAT function but the output matrix has less elements than the cell array. cell2mat does not accept objects or nested cells within C. Extended Capabilities Tall Arrays Calculate with arrays that have more rows than fit in memory. Why was USB 1.0 incredibly slow even for its time? ). Since the cell array contains scalar axes handles, any of the above would work. I was also thinking of using reshape, but in the end I used a simple search for the last row with is not empty, because I find the code you posted too complex or the acutal task. Prior to R2014b axes handles used to be plain numbers so indeed you could convert a cell array of axes handles to a matrix. Find the treasures in MATLAB Central and discover how the community can help you! How do I detect empty cells in a cell array? Hello,i can't solve it until now.I think I don't have enough capicity to, cope with it,Could you please help me?All codes are aviliable except only one error I mentioned.All codes are attached.Only I opened. . In the image below m is a nx11 cell. Received a 'behavior reminder' from manager. What can be done to rectify this error. The problem is that the empty cells are also set to zero, which i do not want. I would like to concatenate all the elements so that I have a single 49x55611. Other MathWorks country sites are not optimized for visits from your location. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. QGIS Atlas print composer - Several raster in the same layout. Based on I want to set NAN to these cells. Some of the cells are empty cells, while others have values. CA = cell (sz1,,szN) The syntax is used to return a cell array of size sz1-by-sz2-by-.-szN creating matrices with empty value where Sz i is the indication for the. but I'm not sure if it will be general enough for you - will you always have complete rows of empty cells at the bottom of your array? ,It happened an error.Hope your help.Thank you. you can use the @isempty function for cellfun () together with logical operators like this: EmptyCells=cellfun (@isempty,elem); %Detect empty cells elem (EmptyCells)= []; %Remove empty cells conn=conn (~EmptyCells); %Remove elements corresponding the empty cells in elem Hope that works! sites are not optimized for visits from your location. Prior to R2014b axes handles used to be plain numbers so indeed you could convert a cell array of axes handles to a matrix. Answers (1) before concatenation To answer your immediate question, you will have to use a loop: c{idx}(cellfun(@isempty, c{idx})) = {nan}; for the outer cell array, you will have to use a named function (in a file) as anonymous functions can't do assignment: Dear Guillaume, Thank you for the quick answer. rev2022.12.11.43106. After the operation i can reassign NAN as an empty cell. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Conversion from 3D cell array to a set of 2D matrices, loop in each cell array element in matlab, accessing nth column of a cell array in matlab. Then, of course, you can reconvert it to a cell array with the following command: Its not generic, but for the example posted it is the simplest solution I can think of. cell2mat (A); The result Theme Copy Error using cat Dimensions of matrices being concatenated are not consistent. Any idea why this might be happening? I used the following code to recreate your scenario with the same dimensions (similar to the code used by @DGM) . your location, we recommend that you select: . Input cell array, in which all cells contain the same data type. Zorn's lemma: old friend or historical relic? Connect and share knowledge within a single location that is structured and easy to search. MATLAB: Collapse code cells in MATLAB's editor, Faster way to initialize arrays via empty matrix multiplication? cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. MathWorks is the leading developer of mathematical computing software for engineers and scientists. I want to change the empty strings to NaNs using a MATLAB function. For example, if the cell array has 10 cells but 2 cells are empty, then when this cell array is passed into CELL2MAT, the output matrix will only have 8 elements. The problem is that the empty cells are also set to zero, which i do not want. I feel the problem is that we are not able to address the sub indexed cells. Description c = mat2cell (x,m,n) divides up the two-dimensional matrix x into adjacent submatrices, each contained in a cell of the returned cell array, c. Vectors m and n specify the number of rows and columns, respectively, to be assigned to the submatrices in c. The example shown below divides a 60-by-50 matrix into six smaller matrices. To do row-wise summation you need to specify the second input to sum (). Choose a web site to get translated content where available and see local events and The error is diagnosed by Simulink.The code attach to the modules.CELL2MAT is in "IEEE80211a_graphics.m" If you need more information I can send you all the files to you personally. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Is it acceptable to post an exam question from memory online? Add a new light switch in line with another switch? I tried with other sets of data (smaller than 10) and this problem seems to only occur in this instance. For some reason, load_data = cell2mat(load_data); instead eliminates one column so the initial cell array is nx11 and the final matrix is nx10 instead. In MATLAB, I have a cell array containing nonempty strings, numbers, and empty strings. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? That model was designed for MATLAB R13SP1, which was from 2003. Actually my cell array consists mainly of strings, so cell2mat is not useful for me. cleanedA = cell2mat (a); It converts to a normal matrix, and while doing this it removes the empty cells. Without knowing the exact details of what is in your cell array (shape and size) it's not easy to tell you how to solve the problem. 2) your loop didn't work properly for arrays with more than 2 dimension. your location, we recommend that you select: . To learn more, see our tips on writing great answers. Reload the page to see its updated state. A = cell2mat( C ) converts a cell array into an ordinary array. It looks like your cell array contains axes handles. 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