Create a loop to do Afmag for matrixes

Heu guys, this is probably very easy but i m struggling with it right now, thanks in advance.

I have this code, Initially I calculated reference_signalcut as a vector, but now it is a matrix, is there any way I could apply this to a matrix or do a for loop to apply it for each column of reference_signalcut.

reference_signalcut is a matrix 23979 by 400, with a signal in frequency domain.

Thank you

[afmag,delay] = ambgfun(Reference_SignalCut,fs,1e6,'Cut','Doppler');
afmag = afmag*1; % Select plot gain *1
afmag(afmag>1 )= 1;