crosstab output

[Val Krem]

Hi all,

How do I access the rows and columns of a data frame crosstab output?


Here is code using  a sample data and output.

a= pd.read_csv("cross.dat", skipinitialspace=True)
xc=pd.crosstab(a['nam'],a['x1'],margins=True)

print(xc)

x1    0  1 
nam 
A1    3  2 
A2    1  4

I want to create a variable  by adding 2/(3+2) for the first row(A1)
and 4/(1+4) for the second row (A2)

Final data frame would be
A1 3 2  0.4
A2 1 4  0.8

Thank you in advance