Dear All,

I have a long matrix where I have the samples (1to n) and then I have (1to j 
)elements.
I would like to count how many times  each j element are present on each 
samples.

So the question is which is the best algoritm for obtain the results. The 
result I want is a table like that.



A,B,D,E,F
AA,1,0,1,0
BB1,1,1,1
CC0,0,1,0
DD01,0,1,0


Do you have any suggestion on how to do this?  only using a loop like:

A is a list with some names A=[AA,BB,ZZ,TT,NN]

if AA in A:
    print 1
else :
    print 0

thanks in advance for any help
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