How to use cat() In MATLAB

The cat() function is used to concatenate the specified arrays.

Syntax:

cat(dim, A, B)

cat(dim, A1, A2 ,…, An)

  • cat(dim, A, B) is used to concatenate “B” to the end of “A” along with the dimension “dim” when A and B have compatible sizes, i.e. the lengths of the dimensions match except for the operating dimension dim.
  • cat(dim, A1, A2, …, An) is used to concatenate “A1, A2, …, An” along with the dimension dim.

Matlab




% MATLAB code for extract numbers from
% cell using regexp with strcat()
% Initializing a cell array
A = {'gfg'; 'gfg1.23GFG'; '5gfg10'};
A1 = regexp(A,'[\d*\.]*\d*','match')
A2 = [A1{:}]
out = str2double(strcat(A2{:}))


Output:

How to extract numbers from cell array in MATLAB?

In this article, we are going to discuss the extraction of numbers from the cell array with the help of regexp(), str2double(), cat(), and isletter() functions.

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