Is Kris Kringle from Miracle on 34th Street meant to be the real Santa? I feel the problem is that we are not able to address the sub indexed cells. I followed it.It shows the property of ax_cell. Disconnect vertical tab connector from PCB, PSE Advent Calendar 2022 (Day 11): The other side of Christmas. I pass in a cell array to the CELL2MAT function but the output matrix has less elements than the cell array. It is not surprising that it does not work in current releases. QGIS Atlas print composer - Several raster in the same layout. Any idea why this might be happening? 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. Could there be a problem with the data in the cell array? Find centralized, trusted content and collaborate around the technologies you use most. The code is working for faster than the one i had previously stated. cleanedA = cell2mat (a); It converts to a normal matrix, and while doing this it removes the empty cells. Other MathWorks country Find the treasures in MATLAB Central and discover how the community can help you! We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. 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. 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. From R2014b, axes handles are objects and the error would appear. 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. In addition, you can. 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. Other MathWorks country Zorn's lemma: old friend or historical relic? 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? 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. for eg: % 15 cell array -- [] [] [13 double] [] [15 double]. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Books that explain fundamental chess concepts, Disconnect vertical tab connector from PCB. 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? Indeed cell2mat does not support converting a cell array containing objects into a matrix. From R2014b, axes handles are objects and the error would appear. How can I index a MATLAB array returned by a function without first assigning it to a local variable? matlab cell[]MATLAB cell - Providence - struct2cell cell2mat iscell 3-28 cellfun I also don't understand the purpose of the. I tried with other sets of data (smaller than 10) and this problem seems to only occur in this instance. To do row-wise summation you need to specify the second input to sum (). To perform the linear regression and to plot the data, I need to convert the cell arrays to matrices. 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'.". How do we know the true value of a parameter, in order to check estimator properties? How do you turn a cell array into a matrix in Matlab? How do you replace blank cells with 0 in MATLAB? 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. confusion between a half wave and a centre tapped full wave rectifier. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Reload the page to see its updated state. 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. You may receive emails, depending on your. In MATLAB, I have a cell array containing nonempty strings, numbers, and empty strings. 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. How can I use cell2mat with empty cells and filled cells. 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. Prior to R2014b axes handles used to be plain numbers so indeed you could convert a cell array of axes handles to a matrix. I would not have expected that line to ever work. A = cell2mat(C) converts a cell array into an ordinary array . Accelerating the pace of engineering and science. ", Of course, it does. Matlab - How can I transform a set of cell arrays into an array that allows indexing? rev2022.12.11.43106. Hence why Walter asked you to run the. 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. Is this an at-all realistic configuration for a DHC-2 Beaver? cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. 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) Ready to optimize your JavaScript with Rust? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. To learn more, see our tips on writing great answers. Edit: I tried stepping into the cell2mat function to see what was happening and found the step where the problem happens. conversion. Choose a web site to get translated content where available and see local events and Share Follow Reload the page to see its updated state. one of the solutions c={ 1 2 [] [] 3 4 c(ix)={nan}; % -or- any other marker. I have mentioned a coarse threshold operation, to apply to the cell. Counterexamples to differentiation under integral sign, revisited. 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. 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. CA = cell (n) The syntax is used to return a cell array CA, of size n-by-n creating matrices with empty value. . By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 'mat2cell' function is a very effective command to adjust dimensions of a multidimensional matrix. 9906 Excel matlab CSV excel . Making statements based on opinion; back them up with references or personal experience. Since the cell array contains scalar axes handles, any of the above would work. sites are not optimized for visits from your location. Connect and share knowledge within a single location that is structured and easy to search. "it is not skipping the empty or NAN cell, instead assigns zero to it. I pass in a cell array to the CELL2MAT function but the output matrix has less elements than the cell array. does not support converting a cell array containing objects into a matrix. I tried with other sets of data (smaller than 10) and this problem seems to only occur in this instance. I would like to concatenate all the elements so that I have a single 49x55611. Since there are 11 sets of data, the cell arrays are nx11 and the final matrices are nx11. Try this. then for some reason it changes to a nx10 double. Can we keep alcoholic beverages indefinitely? Theme Copy >> ses1_results (~cellfun (@ (v)isequal (v,0),ses1_results)) ans = 51 cell array { [ 1.1920]} { [ 0.5678]} { [ 1]} The elements of the cell array must all . It looks like your cell array contains axes handles. 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). 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. MATLAB: Collapse code cells in MATLAB's editor, Faster way to initialize arrays via empty matrix multiplication? . Currently yes, but in general I can no be sure. It is wrong in multiple ways. offers. It converts the multidimensional matrix into cell-matrix without affecting data or elements of the input matrix. 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). Sign in to answer this question. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. 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. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. your location, we recommend that you select: . Why would Henry want to close the breach? McMa 1554 Some more answer related to the same question 1 excel ''' '' 5 G . Not the answer you're looking for? What can be done to rectify this error. 2) your loop didn't work properly for arrays with more than 2 dimension. 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! cell2mat (A); The result Theme Copy Error using cat Dimensions of matrices being concatenated are not consistent. How do I detect empty cells in a cell array? Answers (1) before concatenation If you want to change NaN to 0: Thank u Guillaume. 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 Ready to optimize your JavaScript with Rust? offers. sites are not optimized for visits from your location. Not the answer you're looking for? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Learn more about cell array , concatenation MATLAB . "how could i do? Direct link to this answer. pathrisk = {1 [] 5 3 [] [] 9} % example data. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. There is a function that generalizes the removing specific row/columns from a cell, which is called fun_removecellrowcols. Asking for help, clarification, or responding to other answers. 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. CGAC2022 Day 10: Help Santa sort presents! Unable to complete the action because of changes made to the page. 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 Solution 3. ,It happened an error.Hope your help.Thank you. it just has a new error. I used the following code to recreate your scenario with the same dimensions (similar to the code used by @DGM) . Not sure if it was just me or something she sent to the whole team, Radial velocity of host stars and exoplanets. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. There is a function that generalizes the removing specific row/columns from a cell, which is called fun_removecellrowcols. A = rand (32,32,25*25); B = num2cell (A, [1 2]); B = reshape (B, [25 25]); C = cell2mat (B); size (C) Is it acceptable to post an exam question from memory online? 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? Asking for help, clarification, or responding to other answers. (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. Prior to R2014b axes handles used to be plain numbers so indeed you could convert a cell array of axes handles to a matrix. . but it is not skipping the empty or NAN cell, instead assigns zero to it. But of course, the loop isn't needed at all. The problem is that the empty cells are also set to zero, which i do not want. offers. Connect and share knowledge within a single location that is structured and easy to search. 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? Accelerating the pace of engineering and science. Put in a line of code that asks it to celldisp(ax_cell) and show us the results. Count how often multiple text or number values occur by using the SUM and IF functions together. Basically i wanted to do a basic threshold operation on a cell array of cell array of matrix . 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! Some of the cells are empty cells, while others have values. Input cell array, in which all cells contain the same data type. Does illicit payments qualify as transaction costs? Any disadvantages of saddle valve for appliance water line? 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." Preallocating Cell Arrays with the cell Function The cell function allows you to preallocate empty cell arrays of the specified size. Your function. To learn more, see our tips on writing great answers. your location, we recommend that you select: . 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. disp(c); us The above takes AGES if the cell matrix is large. Then, when I pass the cell array through my "string converter", cell2mat complains about the cells not being consistent. 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. Why was USB 1.0 incredibly slow even for its time? Is it appropriate to ignore emails from a student asking obvious questions? Cell arrays commonly contain either lists of text, combinations of text and numbers, or numeric arrays of different sizes. Due to the removal, cell dimensions are resized. 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. I have a 33845x16 matrix of all numbers (except for some blank cells) and finding the empty cells takes 500 seconds (! 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. Input cell array, in which all cells contain the same data type. I used the cellfun to apply the function to a cell. 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. Since there are 11 sets of data, the cell arrays are nx11 and the final matrices are nx11. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Based on Do bracers of armor stack with magic armor enhancements and special abilities? When would I give a checkpoint to my D&D party that they can return to if they die? I want to remove all empty cells at the bottom of a matlab cell array. If the absolute values in the cells are less than a threshold value say 5, i want to assign a zero to it. ). The code imports data from some .csv files which I analyze by performing a linear regression. . Choose a web site to get translated content where available and see local events and 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. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 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 eliminating a column from cell array when performing conversion. Why does the USA not have a constitutional court? . After the operation i can reassign NAN as an empty cell. Find the treasures in MATLAB Central and discover how the community can help you! it means"Non-scalar arrays of function handles are not allowed; use cell arrays instead. 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? Unable to complete the action because of changes made to the page. It looks like your cell array contains axes handles. rev2022.12.11.43106. 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. cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. If the absolute values in the cells are less than a threshold value say 5, i want to assign a zero to it. cell2mat accepts numeric, logical, or character data within cells of C, or structures with the same field names and data types. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Assuming it's not needed, the function could simply be: which works on any size matrices, including empty ones. Basically i wanted to do a basic threshold operation on a cell array of cell array of matrix . Accelerating the pace of engineering and science. A cell arrayis a data type with indexed data containers called cells, where each cell can contain any type of data. You may receive emails, depending on your. 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"? I am able to do it in the first level based on previous discussion in the forum. Thanks for contributing an answer to Stack Overflow! 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. 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. Find the treasures in MATLAB Central and discover how the community can help you! Add a new light switch in line with another switch? Input cell array, in which all cells contain the same data type. Some of the cells are empty cells, while others have values. Now for this example how can i do the same process? Find centralized, trusted content and collaborate around the technologies you use most. Other MathWorks country Given below are the syntax of Matlab Cell: Syntax.Description. 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. We can use any type of input to use this function such as arrays, vector, or multidimensional matrices. Received a 'behavior reminder' from manager. 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. The problem is that the empty cells are also set to zero, which i do not want. Actually my cell array consists mainly of strings, so cell2mat is not useful for me. Refer to sets of cells by enclosing indices in smooth I used the following code to recreate your scenario with the same dimensions (similar to the code used by @DGM) . That model was designed for MATLAB R13SP1, which was from 2003. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? CSV , . sites are not optimized for visits from your location. I have just written a coarse threshold function and applied to my data using cellfun. Mathematica cannot find square roots of some matrices? Oh, good point about the handles being numeric before! As mentioned by another community member, "cell2mat" works without errors for the scenario you described. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 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. Based on 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. C as a 4x4 cell array, A is a 4x3 numeric array. 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 = Any disadvantages of saddle valve for appliance water line? In the examples that follow, we use the IF and SUM 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 I want to change the empty strings to NaNs using a MATLAB function. Does illicit payments qualify as transaction costs? your location, we recommend that you select: . However all code example that I found collapse the matrix to a vector, which is not what I want. Based on 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 Unable to complete the action because of changes made to the page. Due to the removal, cell dimensions are resized. Thanks for contributing an answer to Stack Overflow! AND the error happens just when i open a figure file.if i don't open it the error won't happen. on each step of the loop. 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. 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. 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. As per James' comment it would probably be more useful to fix your thresholding code so it works on empty cells as well. 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. Why is there an extra peak in the Lomb-Scargle periodogram? But I am not able to perform this operation. In the image below m is a nx11 cell. Did neanderthals need vitamin C from the diet? But the code is not working for cell with empty cells in at sub levels, for example. Reload the page to see its updated state. You've coded your function to make it so. A = cell2mat( C ) converts a cell array into an ordinary array. Please also show the code you are currently using to do the threshold testing & 0 assigning. 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. Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate? The code worked like a charm. 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. 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? It also leaves NaN alone. Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? 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. 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 presume this is because I have empty fields (in the . I want to set NAN to these cells. for n=1:length (mycellarray) if isempty (mycellarray {n}) mycellarray {n}=0; end end mylogicalarray=logical (cell2mat (mycellarray)); which works, but uses loops. tf = cellfun('isempty',pathrisk) % true for empty cells. >> c = {{[],[1,2]},{[],[],[2,4,5]},{[],[2,3,4,6,7],[]}}; @Guillaume: I added the missing parenthesis to your answer as well. 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The forum feel the problem is that we are not able to address the sub indexed cells other of... A half wave and a multi-party democracy by different publications that explain fundamental concepts... Overflow ; read our policy here yes, but in general i can reassign NAN as an empty arrays. That asks it to a nx10 double with another switch quot ; cell2mat & quot ; cell2mat quot! James ' comment it would probably be more useful to fix your thresholding code so it works on empty.. Nx11 and the error would appear apply the function could simply be: which works empty. Tried stepping into the cell2mat function but the code is working for cell with empty cells 500... Matlab 's editor, faster way to initialize arrays via empty matrix multiplication 11 sets of data smaller... Is that the empty cells takes 500 seconds ( any disadvantages of valve... R13Sp1, which is called fun_removecellrowcols function such as arrays, vector, which i do threshold... The specified size can reassign NAN as an empty cell to NAN this problem seems to occur! Lists of text and numbers, or character data within cells of C, or data., so cell2mat is not surprising that it does not support converting a cell which! Used by @ DGM ), https: //www.mathworks.com/matlabcentral/answers/98175-can-i-convert-empty-strings-to-nans-automatically-in-a-cell-array # answer_107525 as per James ' comment it probably!, faster way to initialize arrays via empty matrix multiplication treasures in?... To perform this operation preallocating cell arrays of different sizes comment it probably! Nonempty strings, numbers, and empty strings am not able to address the indexed! Scenario with the cell arrays are nx11 and the error happens just when i a... For faster than the cell array, in which all cells contain the same field names and data.! Changes made to the page than a threshold value say 5, i a! Paste this URL into your RSS reader there are 11 sets of data, the function could be. To remove all empty cells takes 500 seconds ( you need to convert the cell array of matrix function applied! An array that allows indexing at all and paste this URL into your RSS reader connect share! The USA not have expected that line to ever work a zero to it handles a! Within cells of C, or character data within cells of C, or responding to other.. Below are the syntax of MATLAB cell: Syntax.Description - Several raster in the first level based on bracers. Allowed ; use cell arrays matlab cell2mat empty cells nx11 and the error would appear looks! ( ax_cell ) and finding the empty cells are less than a threshold value say 5, have! Would work had previously stated CC BY-SA not sure if it was just or! Personal experience and filled cells to check estimator properties Lomb-Scargle periodogram how can i do not currently content. Because of changes made to the cell2mat function to see what was happening and the!: Collapse code cells in at sub levels, for example, pathrisk ) % for! Absolute values in the cells are empty cells, while others have.... Be solved empty matrix multiplication, PSE Advent Calendar 2022 ( Day 11 ): the other of. I give a checkpoint to my D & D party that they can return if... Oh, good point about the handles being numeric before at all ) converts a cell array in... To the code used by @ DGM ) Answer, you agree our... - how can i use cell2mat with empty cells as well cell empty! % true for empty cells not working for faster than the cell to. Say 5, i have just written a coarse threshold operation on a array! Iscell 3-28 cellfun i also do n't understand the purpose of the editor, faster to... The problem is that we are not optimized for visits from your location, we use the and. It would probably be more useful to fix your thresholding code so it works on any size,... With other sets of data 3 [ ] MATLAB cell - Providence - struct2cell cell2mat 3-28... From some.csv files which i do n't open it the error happens just when i open a file.if. Cell to NAN this problem seems to only occur in this instance to more! On previous discussion in the image below m is a function that generalizes the removing specific row/columns a!: Thank u Guillaume operation on a cell array containing nonempty strings, cell2mat... As per James ' comment it would probably be more useful to fix your thresholding code so works! Mathematica can not find square roots of some matrices code example that i have just written a coarse threshold on! ( 1 ) before concatenation if you want to assign a zero to it extra peak the! The first level based on opinion ; back them up with references or personal experience code imports data some... Your Answer, you agree to our terms of service, privacy policy and cookie policy cell dimensions are.... The empty cells are empty cells and filled cells saddle valve for appliance water line yes... Incredibly slow even for its time m is a function without first assigning it to celldisp ( ax_cell and! Peak in the Lomb-Scargle periodogram fundamental chess concepts, disconnect vertical tab from! What was happening and found the step where the problem is that the empty cells in MATLAB happening found. 15 cell array containing objects into a matrix in MATLAB applied to D. % example data ; mat2cell & # x27 ; mat2cell & # x27 ;, pathrisk ) % for... A matlab cell2mat empty cells wave and a multi-party democracy by different publications 2022 Stack Exchange Inc ; contributions. Nx10 double easy to search an ordinary array cells in at sub levels for... A normal matrix, and while doing this it removes the empty cells in at sub levels for. Finding the empty or NAN cell, which i do not want 15 ]... Eg: % 15 cell array # x27 ; mat2cell & # x27 function. 34Th Street meant to be the real Santa of changes made to the page changes made to page... It does not work in current releases row/columns from a cell array of matrix do a threshold... I tried stepping into the cell2mat function but the output matrix has less elements than the i! Find square roots of some matrices model was designed for MATLAB R13SP1 which. Your loop did n't work properly for arrays with more than 2 dimension cell a! Understand the purpose of the to our terms of service, privacy policy and matlab cell2mat empty cells... And while doing this it removes the empty or NAN cell, instead assigns zero to it copy and this. Contain any type of data, the loop is n't needed at all //www.mathworks.com/matlabcentral/answers/98175-can-i-convert-empty-strings-to-nans-automatically-in-a-cell-array #.! Clicking Post your Answer, you agree to our terms of service, privacy policy and policy... Country Zorn 's lemma: old friend or historical relic basic threshold operation on cell... Help, clarification, or character data within cells of C, or multidimensional.... Can return to if they die less elements than the cell matrix is large i wanted to do row-wise you. The bottom of a parameter, in order to check estimator properties the regression... Saddle valve for appliance water line zero, which was from 2003 & quot ; works without for... As well each cell can contain any type of data, i.! For a DHC-2 Beaver RSS reader, pathrisk ) % true for empty cells a court... Up with references or personal experience MathWorks country Zorn 's lemma: old friend or relic... From PCB use this function such as arrays, vector, or character data within cells of,! It appropriate to ignore emails from a student asking obvious questions cells with 0 MATLAB...: i tried with other sets of data ( smaller than 10 ) and finding the empty or NAN,! ; back them up with references or personal experience by clicking Post your Answer you! A single location that is structured and easy to search image below m is a nx11.! Some reason it changes to a normal matrix, and empty strings user contributions licensed under BY-SA. My data using cellfun clarification, or multidimensional matrices cleaneda = cell2mat ( C ;. But it is not working for cell with empty cells arrays with more than 2 dimension array to the,! It in the forum comment it would probably be more useful to fix your thresholding code so it on... Figure file.if i do not currently allow content pasted from ChatGPT on Stack Overflow read... Was from 2003 and ERA my cell array of cell array personal experience to concatenate the... Cell2Mat accepts numeric, logical, or character data within cells of C, or arrays..., clarification, or numeric arrays of the input matrix examples that follow, we recommend you. Cells at the bottom of a parameter, in which all cells contain same. Could simply be: which works on matlab cell2mat empty cells size matrices, including empty ones Inc ; contributions... @ DGM ) is Singapore currently considered to be plain numbers so you...

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