Answered
Count the number of same elements in an array
Your 1st example: >> V = [ 1 2 4 3 4 2 3 5 6 4 5 6 8 4 2 3 5 7 8 5 3 1 3 5 7 8 9 5 3 2 4 6 7 8]; >> C = hist(V,1:max(V)) C = ...

7 years ago | 5

Answered
picking up data file in each iteration
"so how can automatically pick file in every itteration inside for loop ?" Following the outlines given in the MATLAB documenat...

7 years ago | 0

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Answered
How to reshape a square matrix diagonally to a vector?
>> A = [0,1,0;1,1,1;1,1,0] A = 0 1 0 1 1 1 1 1 0 >> V = 1:sum(size(A))-1; >> W = fi...

7 years ago | 2

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Answered
What is defined as an integer type, when calling validateattributes?
Lets read the validateattributes documentation, and see what it says. All of its calling syntaxes start with the exactly same t...

7 years ago | 2

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Answered
Index exceeds array bounds, when call a function with struct parameter
A structure is an array. It can be empty, or scalar, or have size 2x3, or whatever size you want, just like any otther type of a...

7 years ago | 0

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Answered
Regexp with a list of keywords
Using a simple lookaround assertion: https://www.mathworks.com/help/matlab/matlab_prog/regular-expressions.html#brchk1t >> key...

7 years ago | 0

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Answered
GUI calls function1 which has a uitable and callback...
The guidata documentation states that its first input argument must be a handle to any graphics object in your GUI. What is its ...

7 years ago | 0

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Time in hr min sec to seconds
>> str = '152605'; >> vec = sscanf(str,'%2d'); >> out = [60*60,60,1]*vec out = 55565

7 years ago | 1

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creating matrix out of another matrix
out = reshape(results(:,4),13,8).'; out(:,14) = 4; % if you want an 8x14 matrix

7 years ago | 1

Answered
How to assign input given by user via inpuutdlg command to variables
Just use indexing: out = inputdlg(...); somevar = out{1}; othervar = out{2}; ... https://www.mathworks.com/help/matlab/mat...

7 years ago | 0

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Answered
Array indices must be positive integers or logical values.
Check your indexing: >> colum = 128; >> dtn = 129; >> colum-dtn+1 ans = 0 MATLAB indexing start at 1.

7 years ago | 0

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How to find the full file path with only a folder?
Until MATLAB has an inbuilt function for this, the general solution is to download one of these: https://www.mathworks.com/matl...

7 years ago | 0

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How do I access a specific directory so I can then retrieve images in that directory with a specific file extension?
D = 'relative or absolute path to the specific directory'; S = dir(fullfile(D,'*.png')); C = {S.name} % output cell array

7 years ago | 0

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Variable highlighting isn't working
"I can't seem to get variables to be highlighted in the editor." MATLAB automatically highlights all reachable instances of a v...

7 years ago | 1

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Answered
How can I concatenate multiple doubles within one cell into one double with the same length?
Try using a comma-separated list: cat(2,SubjectData{1}.movementTime)

7 years ago | 0

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Answered
How to separate a portion of filename from a file
Simpler: >> str = 'scrubbed.MOD_D3_AOD_550.20020112.nc'; >> out = regexp(str,'\d{8}','match','once') out = 20020112

7 years ago | 1

Answered
Only add to empty elements in an array
>> d = cat(3,a,b,c); >> sum(d.*(cumsum(d~=0,3)==1),3) ans = 1 2 3 4 5 6 7 8 9

7 years ago | 0

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Answered
Function returning ans instead of three outputs
You need to call the function with three output arguments, e.g.: inp = [...]; % your input array [RR,GG,BB] = MostDistantPixel...

7 years ago | 1

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Answered
Creating a stacked bar plot
The bar documentation states "If y is a matrix, then bar groups the bars according to the rows in y", so you need to translate y...

7 years ago | 4

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Answered
Assigning RGB values to a new 3D RGB image
staticImage(i,j,:) = [R,G,B];

7 years ago | 0

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Answered
Converting columns in a matrix to percentage
>> M = [48,40,35,52,38,11,64,39,26;50,35,37,55,43,24,54,25,26;33,27,36,28,26,27,39,27,16;40,29,40,51,29,24,47,32,29;66,37,38,51,...

7 years ago | 0

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Answered
How can I create cell arrays that are in sequential order?
Two simple solutions: add sufficient leading zeros to all of the numbers (then a character sort will give the correct order). T...

7 years ago | 1

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Read a specified list of images given the filename and the directory the files are in
D = "path of the directory where the images are saved"; S = ["string array","of","the image filenames"]; N = numel(S); C = ce...

7 years ago | 0

Answered
How to index tables in a struct? (to call each field from App Designer)
You need to loop over the fieldnames: app.data = load('workspace.mat'); C = fieldnames(app.data); for k = 1:numel(C) T =...

7 years ago | 0

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Answered
How to index so end+1 goes to the beginning of an array
>> V = 1:4; >> V(1+mod((end+1)-1,end)) ans = 1 >> V(1+mod((end+0)-1,end)) ans = 4 >> V(1+mod((end-1)-1,end)) a...

7 years ago | 0

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Answered
Is it possible to organize variables shown in workspace?
"At the end of simulation are variables of two scripts are shown in workspace alphabetically. Is it possible to sort them by scr...

7 years ago | 0

Answered
What do the empty square brackets [] do in the expression executed by eval?
"What do the empty square brackets [] do in the expression executed by eval?" Nothing really. MATLAB has positional input argu...

7 years ago | 0

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Answered
How can I work around the fact that app designer does not support output arguments?
https://www.mathworks.com/matlabcentral/answers/707338-output-arguments-in-app-designer

7 years ago | 0

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Answered
Fill an array with different size vectors
For an arbitrary number of vectors use a cell array, then looping is trivial: >> D = {[1,2,3,4],[5,6],[7,8,9]}; >> M = zeros(5...

7 years ago | 1

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Answered
calling a matrix with different names in a for loop
Simply put your three matrices into one cell array, then your task is trivial: C = {NPV_1, NPV2, NPV_3}; for k = 1:numel(C) ...

7 years ago | 1

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