"bluesaturn[at]kellnerweg.de" <bluesaturn@kellnerweg.de> wrote in message <774166218.318291.1276271421713.JavaMail.root@gallium.mathforum.org>... > I have a 7x1 cell array called X. > > exist(X) does not work as I am not allowed to apply it on type cell. > Is there any solution for this problem, please? > > Thank you. > Blue Hi Blue, you have to include the name of the variable, be it a cell array or not, in single quotes. A = cell(2,1); exist('A') Hope that helps, Wayne

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6/11/2010 4:13:04 PM

Wayne King wrote: > "bluesaturn[at]kellnerweg.de" <bluesaturn@kellnerweg.de> wrote in > message > <774166218.318291.1276271421713.JavaMail.root@gallium.mathforum.org>... >> I have a 7x1 cell array called X. >> >> exist(X) does not work as I am not allowed to apply it on type cell. >> Is there any solution for this problem, please? >> >> Thank you. >> Blue > > Hi Blue, you have to include the name of the variable, be it a cell > array or not, in single quotes. > > A = cell(2,1); > exist('A') > > Hope that helps, To which I would add that unless you have specific reason not to, you should use exist('A','var') just in case your variable name happens to be the same as the name of a function or the like.

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6/11/2010 4:25:36 PM

I have a 7x1 cell array called X. exist(X) does not work as I am not allowed to apply it on type cell. Is there any solution for this problem, please? Thank you. Blue "bluesaturn[at]kellnerweg.de" <bluesaturn@kellnerweg.de> wrote in message <774166218.318291.1276271421713.JavaMail.root@gallium.mathforum.org>... > I have a 7x1 cell array called X. > > exist(X) does not work as I am not allowed to apply it on type cell. > Is there any solution for this problem, please? > > Thank you. > Blue Hi Blue, you have to include the name of ...

Hi I have this horizontal array of names: Name Size Bytes Class Attributes itemNames 1x70 7428 cell I need to convert this into a a character array or cell array of strings. I tried: S = char( itemNames) ??? Error using ==> char Cell elements must be character arrays. I tried also: S = cellstr( itemNames) ??? Error using ==> cellstr at 34 Input must be a string. I appreciate your help, thanks, Manal "Manal " <news@mathworks.com> wrote in message <guqdbh$qci$1@fred.mathworks.com>... &...

Hallo. I have a problem with a cell array. It's a 12x2 cell array. And in the second column in each row of this cell array is again a 13x1 cell array. In the 8th cell there is a column vector. I tried to gain access to this column vector in the 8th cell for finding the minimum at once of all 12 cells in the second column. But I failed. It looks like that: samples_merged{i,2}{8,:} where i runs from 1 to 12. I am able to solve the problem with a loop, sure, but if anyone comes up with an idea without a loop, I would be happy. Kind regards, Gudrun In article <10143048.1204191328840.J...

Hi Everyone, I have data in cell arrays containing cell arrays. I would like to extract data from these cell arrays and store in a normal array. I am able to do it for a particular case using nested for loops. But I would like to generalize this problem such that I can extract any kind of cell array containing cell arrays just like cell2mat function does. Please let me know if there is any solution to this problem. Thanks, Anil Palaparthi. Already discussed here: http://www.mathworks.com/matlabcentral/newsreader/view_thread/253738 Bruno Anil Kumar Palaparthi wrote: > I ha...

Hey guys I need your help once again! I hope someone can show me how to do this. So I have a cell MTT with "d" cell arrays in it, each cell array contains a matrix of nxn and I need to change a whole row of numbers to Inf in every matrix except for one of them which is going to be given by variable "b". MP is a matrix with a dx2 dimension. Here is my code but this will do it for all matrices, I want to find a way to not do it for "b", for d = 1:numMachines; MTT{d}(MP(b,2),:) = Inf; end Now I have tried doing the following but I guess I can not do...

Hi, So I have a cell array of a cell array of strings that I am working with. As an example consider the following: test=cell(5,1); test{1,1}{1}=num2str(1); test{1,1}{2}=num2str(0); test{2,1}{1}=num2str(0); test{2,1}{2}=num2str(0); test{3,1}{1}=num2str(1); test{3,1}{2}=num2str(1); test{4,1}{1}=num2str(0); test{4,1}{2}=num2str(0); test{4,1}{3}=num2str(0); test{5,1}{1}=num2str(0); test{5,1}{2}=num2str(1); test{5,1}{3}=num2str(0); I want to process this cell array of cell array of strings so that the inside cell array is removed to make it easier to analyze and look at the...

Hello I would like to know how can I put a part of a cell array into another cell array without use for or while loops. For example: "points" is a cell array of dimensions 1 x 16. The elements of "points" consists on matrices of several sizes. Now I want to introduce "points{1:5}" into another cell array of dimensions 1 x 5 without using loops. How can I do this? Thanks in advance. help deal e.g. [points2{2:6}]=deal(points{1:5}); Jos� L. G�mez wrote: > Hello > > I would like to know how can I put a part of a cell ...

I have a 10000x1 cell array, and within each of those cells a 1x5 cell array. Every cell contains numbers stored as characters. How do i go about converting it to a 10000x5 matrix of doubles? Thankyou in advanced "Jordan" wrote in message <jp1gn9$krj$1@newscl01ah.mathworks.com>... > I have a 10000x1 cell array, and within each of those cells a 1x5 cell array. > > Every cell contains numbers stored as characters. > > How do i go about converting it to a 10000x5 matrix of doubles? > > Thankyou in advanced Jordan: This probably isn't the be...

I have a 1 x 500 cell array where each cell is a 1 x 4 cell array. The inner 1 x 4 cell array has a double numeric value in the 4th cell. I would like to sort the 500 cells by this numeric value. What is the best way to do this? Thanks In article <1191983851.468137.61110@r29g2000hsg.googlegroups.com>, G.A.M. <x0Zero@gmail.com> wrote: >I have a 1 x 500 cell array where each cell is a 1 x 4 cell array. The >inner 1 x 4 cell array has a double numeric value in the 4th cell. I >would like to sort the 500 cells by this numeric value. What is the >best way to do this? Thank...

I have a text file that I read in to Matlab using textscan, and have the data extracted into cell arrays. The cell array I'm working with consists of x number of cells, each containing strings (which should really be numbers). I would like to create a non-cell variable that has 1 column, with x number of rows. The main problem is that I can create a variable that has all the strings from the cell array, but since some digits are single and some are double, the rows do not necessarily correspond to the original cells. How can I get the contents of each cell to = a row in a new variable?...

Hello, I have the following: A = [1 2; 4 5] And B = 'hello' I want to create two cell arrays where each element is a 1 by 1 matrix. Something like I would have doing: A_Cell = {1 2; 4 5} and B_Cell = {'hello'} If I do A_Cell = {A} and B_Cell = {B} I don't get what I want. Can somebody tell me how to do this? Thanks, Miguel A_cell = num2cell(A(:)); B_cell = num2cell(B(:)); Are they what you want? ...

Hello, I have a question. I think my problem has to do with a fundamental lack of knowledge about how indexing works in Matlab. Here is my code: Assume D3 is a data structure containing 3 fields, each field is an nx1 array. D3.F1 = [1 2 3 4] D3.F2 = [5 6 7 8] FL = fieldnames(D3); data{:,3} = num2cell( D3.(FL{2}) ) %so I am trying to fill the third column of cell array "data" with the contents of the array of the second field of D3. What I get is data{1,1} containing a cell which contains the entire cell array of D3.F2. Can someone tell me how to make this assi...

I have a bunch of 1D cell arrays that I wish to combine into a 2d cell array matrix. I am having trouble coming up with a statement that will do this. My current plan of action is to create my 2D cell array and then assign each 1D array to a particular column of the 2D array. So I have a 1D cell array: a = 'ay' 'be' 'ce' 'de' I make a 2D cell array: c = cell(4,10); I want to stick the contents of a{1} into c{1,5}. Then I want to stick the contents of a{2} into c{2,5}. and so on for all 4 elements of a. when I try the stat...

I have x = Columns 1 through 11 '1' '10' '11' '12' '13' '14' '15' '16' '2' '3' '4' Columns 12 through 22 '5' '6' '7' '8' '9' '1' '10' '11' '12' '13' '14' Columns 23 through 33 '15' '16' '2' '3' '4' '5' '6' '7' '8' '9' '1' Co...

Hello, I have a unique problem. Right now I have a large cell array and I want to break that cell array into smaller cell arrays. Here is a portion of the large cell array: C = [1x35 char] [1x39 char] 'ALAMEDA' 'CA' [1x30 char] [1x20 char] 'ALAMEDA' 'CA' [1x30 char] [1x20 char] 'LUDINGTON' 'MI' [1x30 char] [1x20 char] 'LUDINGTON' 'MI' Now, for this test case I want to break this into two smaller cell arrays according to...

Hello I'm sorry if this is a really obvious problem but I am having a hard time finding the specific answer to this on the internet. I am trying to write a function that has a cell array as an input argument and outputs a cell array. I have written the following lines, which at this point should just output the same array as was input: function outTable = coltable(inTable) for i = 1:size(outTable,1) for j = 1:size(outTable,2) outTable{i,j} = inTable{i,j}; end end However, when I try to call the function using the following lines: B = {1 2 3 ; 4 5 6} outGU...

I would like to extract the strings that match between two cell arrays of strings using strncmp to only compare strings on the length of strings in the second argument: idxSites = strncmp(lstSites, IDVar, length(IDVar)); but length(IDVar) gives me the number of strings (771) while size(IDVar) returns 771 1. How can I properly extract the string length specific to each string in the cell array and thus make strncmp work? -- Luc Le Blanc On 3/19/2014 2:00 PM, Luc Le Blanc wrote: > I would like to extract the strings that match between two cell arrays > of strings using str...

I have two cell arrays. I can not figure out how to get them combined into one simple cell array. In the world of OOP, wouldn't it be nice if you could just do it this way. S3 = S1 + S2; % C++ wishful thinking % How can I do this in MATLAB S1 = { 'Why', 'do', 'some', 'things' }; S2 = {'have', 'to', 'be', 'so', 'difficult', 'in', 'MATLAB?'}; desired result S3 = {'Why', 'do', 'some', 'things' , 'have', 'to', 'be', 'so', 'difficult...

I understand that typically "vectorizing" and removing for-loops makes Matlab code (within Matlab, I'm not talking about compiling/hand-converting to C, C++, etc.) faster inside the Matlab application. However, I have successfully "vectorized" some code involving "cell arrays" and it appears not to be significantly faster, it even may be somewhat slower. Is this to be anticipated? Is there a general paradigm for speeding up cell array operations? Is a double-for loop the best way to do this? Thanks, Sincerely, Joseph PhD and Matlab "exper...

I created a cell array from an asc file. I want to convert it to a numeric array to make operations easier. I'm getting the error message: cannot support cell arrays containing cell arrays or objects. How can I fix this? Any help would be much appreciated. for p = 1:length(sample); eval(['fid=fopen(''../RawData/' sample(p).name '@' sample(p).acqo '.asc'');']); d = fgetl(fid); % defines d as the first line of the file date = d(end-8:end); % defines date as the 8th character from the end to the end t = fgetl(fid); %defines...

Dear all, i have a pbm with the cell array and i do not know how to let matlab extract the value of my variable, 'repetitions' from the cell array.pls advise me. Below is the snipplet of the code where it failed. %Open diaglou box for user to input number of repetitions needed to compute the result prompt = 'Enter the number of repetitions needed to calulate the average error rates:'; title = 'Input for number of repetitions'; num_lines = 1; default = {'10'}; repetitions = inputdlg(prompt, title, num_lines, default); %some mistakes here,not sure %Check to see...

Hi, I need help. I'd like to add a whitespace at the end of each element of a cell array of characters. A = {'A','BC','DEF'}; I'd like to have the following result without any loop. A={'A ','BC ','DEF '}; Thank you in advance, David. "David Dianand" <ddianand@ren.com> wrote in message news:eed22ab.-1@webx.raydaftYaTP... > Hi, I need help. > > I'd like to add a whitespace at the end of each element of a cell > array of characters. > > A = {'A','BC','...

Hello, I have a cell array of strings,g, that is 10-by-3, and I wish to have a cell array of strings that is 10-by-1. The 'rows' of h should be the concatenated strings in g. This works for what I want: for ii = 1:length(g),h{ii} = [g{ii,1},g{ii,2},g{ii,3}];end But is there a way to do this without a loop? I tried cellfun with @cat, but I cannot pass the dim arg to cat (why oh why?) Thanks. In article <fiphm2$1tr$1@fred.mathworks.com>, Matt Fig <spamanon@yahoo.com> wrote: >I have a cell array of strings,g, that is 10-by-3, and I >wish to have a cell array of...

Howdy! I'm a NooB, but am making strides. This is my first line casted to MATLAB Central! I am presented with the following 1x45 cell array: [double] [double] [double] {cell} [double] ... [double] -- note the curly brackets around {cell}...why is that? Every sub-array is a 1000x1 column vector. Cells 1-3, and 5-45 all contain numeric data. Cell 4, on the other hand, contains #NAME? and seems to be interpreted as a cell. *** I would like to convert this cell array to a 1000x45 matrix. If all the sub-arrays were [doubles], then the function CELL2MAT would work perfectly. How...

I wish to efficiently convert a number of elements contained in a cell array to a single cell array element using carriage returns to preserve the presentation of the contents. I know I can write a bunch of code to achieve this but was hoping for slicker way. Thanks. -Chris for example, given ans as follows, ans = '' 'x < 0.0' 'T' '-' '' 'Actions' 'A1' 'A2' >> whos ans Name Size Bytes Class ans 2x4 520 cell array I...