tf.contrib.distributions.Chi2

class tf.contrib.distributions.Chi2

The Chi2 distribution with degrees of freedom df.

The PDF of this distribution is:

pdf(x) = (x^(df/2 - 1)e^(-x/2))/(2^(df/2)Gamma(df/2)), x > 0

Note that the Chi2 distribution is a special case of the Gamma distribution, with Chi2(df) = Gamma(df/2, 1/2).