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I am working in Matlab. I created a matrix and then a cell array based on that matrix: A = randi([1 5], 5, 5); B = num2cell(A);

I want to replace the numbers in B with different strings based on A's columns.

For example, where column
A(:,1) == 1 replace with 'Cat' and A(:,2) == 1 replace with 'Dog'

If A = [ 1 2 1 3 5; 2 1 5 1 4; 1 1 2 5 1; 5 5 3 4 1; 1 1 2 5 2]

Then I want B = [ Cat 2 1 3 5; 2 Dog 5 1 4; Cat Dog 2 5 1; 5 5 3 4 1; Cat Dog 2 5 2]

I have tried B(A(:, 1) == 1) = {'Cat'} and B(A(:,2) == 1) = {'Dog'} but everything keeps getting placed in B's first column. I can't figure out the indexing.

Appreciate the help!

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  • 1
    You need to add an index for the column in the cell array. Commented Sep 23, 2021 at 15:12
  • How? I have tried several ways and keep getting errors. Commented Sep 23, 2021 at 15:20
  • 1
    B(A(:,1) == 1, 1) = {'Cat'} should work. Or even B(A(:,1) == 1, 1) = 'Cat' Commented Sep 23, 2021 at 16:28
  • Thank you, B(A(:,1) == 1, 1) = {'Cat'} and B(A(:,2) == 1, 2) = {'Dog'} did the trick! Commented Sep 23, 2021 at 17:16
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