MATLAB: Convert matrix into matrix with a repetitive pattern

convert matrix

Consider the following matrix.

    234
    235
    236
    237
    238
    239
      I want to convert it into the following matrix pattern:
 234
 234
 234
 235
 235
 235
 236
 236
 236
 237
 237
 237
 238
 238
 238
 239
 239
 239

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doc repelem

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MATLAB: Create a matrix with a repetitive pattern

 x = your original vector
 n = number of vertical repititions
 result = repmat(x,n,1);

MATLAB: Find how many times sequences are present in a string array

Here is one way to do it:

First, convert T into a matrix of number with str2double. The empty strings will be converted to NaNs, I assume NaN is never present in S anyway:

TT = str2double(T);

You can then iterate over the rows of S and use ismember or bsxfun(@eq...) to check for equality, only using the required numbers of columns from TT:

count = cellfun(@(s) sum(all(bsxfun(@eq, s, TT(:, 1:numel(s))), 2)), S)

note: in actually code, please use better variable names than S, T and TT.

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MATLAB: Create a matrix with a repetitive pattern

MATLAB: Find how many times sequences are present in a string array

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