Question

I have a string matrix filled with data like

matrix = ['1231231.jpeg','4343.jpeg',...]

and I want to remove its file extension and get

matrix  = ['1231231', '4343']

How can I do it? is there any function or what 🙂

Answer 1

Assuming the matrix looks like

 matrix = ['1231231.jpeg';
           '4343.jpeg';
            ....];

(; instead of ,). If ‘,’ is used, the chars in the matrix are concatinated automatically.

You can use arrayfun to perform an operation on each index of a matrix. The following command should work

arrayfun(@(x) matrix(x,1:strfind(a(matrix,:),'.jpeg')-1), str2num(matrix(:,1))', 'UniformOutput' , false)