How to make a binomial CDF in python?

Question

How can i add n choose k and add it to the binomial CDF so i can plot it for my data x?

#Parameters: 
n = 2*n+1
p= sum(x)/(2*n+1)

#Binomial CDF

sum((p^i)*(1-p)**(n-i))

Answer 1

You should try to check this link : Binomial distribution CDF using scipy.stats.binom.cdf to plot binomial CDF using matplotlib histogram and scipy stat binom

Answer 2

You can get nCk from :

from math import factorial
def n_choose_k(n, k):
    return factorial(n) // factorial(k) // factorial(n-k)

Its not super clear however what your goal is, in particular the n=2*n+1 bit.