Package src :: Package stats306b :: Package lecture7 :: Module fastica

Module fastica

Functions

single(X, w=None, tol=0.0001, resid=None, niter=40, nonlin='kurtosis')
Fixed point algorithm for fast ICA -- gets one component orthogonal to resid. source code

ICA(X, ncomp=1, whiten=False, tol=0.0001, niter=40, nonlin='hermite')
Get ncomp ICA components, after optionally whitening the data first. source code

Variables

[hide private]

fns = {'atan': (<ufunc 'tanh'>, <function <lambda> at 0xa93ab8...

Variables Details

[hide private]

fns

Value:

{'kurtosis':(lambda x: x** 3, lambda x: 3* x** 2), 'atan':(np.tanh, la
mbda x: 1-np.tanh(x)** 2), 'hermite':(lambda x: x* np.exp(-x** 2/ 2), 
lambda x:(1-x** 2)* np.exp(-x** 2/ 2))}