# EoN.get_PGFPrime¶

EoN.get_PGFPrime(Pk)[source]

Given a degree distribution (as a dict) returns the function $$\psi'(x)$$

Pk dict
Pk[k] is the proportion of nodes with degree k.
psiPrime (function)
$$\psi'(x) = \sum_k k P_k[k] x^{k-1}$$