Remove specific characters from cell array

Hi,

Maybe exist an easy way to do what I'm looking for. I want to create a new cell array from a current cell array but including only characters from positions 2 to 5 for example. Some elements in cell array are empty. Will be also helpfull if I could get a way to obtain 4 characters after ":" it, will be great.

Thanks for your help

Answer 1

[Guillaume]

• extract elements 2 to 5:

cellfun(@(x) x(2:min(end, 5)), yourcellarray, 'UniformOutput', false)

the min(end, 5) is to make sure it doesn't error if the content of a cell is less than 5 elements.

• extract 4 characters after :, only works if all elements of the cell array are char array (empty char arrays are fine):

regexp(yourcellarray, '(?<=:)....', 'match', 'once')

Answer 2

[Akira Agata]

If string before ':' is always two digit, the following will work.

output = regexprep(yourCellArray,'\d{2}:','');

Answer 3

[Luis Lopez]

Hi,

Both answers work fine for my initial question. Now I'm wondering if you can help me to identify a way to create n variables from a cell array.

Where my variable B has many elements to create new variables, alwas 4 digits after ":". My desired outputs is in this case a logical variable called "F_3749" and the second one "F_1671".

Thanks for your help.