import numpy as np
import cosmotool as ct

f=0.01
d=np.random.normal(size=(16,16,16))
rho = d + f *(d*d - np.average(d*d))

B = ct.bispectrum(rho, 1, 16, fourier=False)
P = ct.powerspectrum(rho, 1, 16, fourier=False)