特殊函数

信息论函数

mars.tensor.special.entr	Elementwise function for computing entropy.
mars.tensor.special.rel_entr	Elementwise function for computing relative entropy.

误差函数

mars.tensor.special.erf

Returns the error function of complex argument.

Gamma 和相关函数

mars.tensor.special.gamma	gamma function.
mars.tensor.special.gammaln	Logarithm of the absolute value of the Gamma function.
mars.tensor.special.loggamma	Principal branch of the logarithm of the gamma function.
mars.tensor.special.gammasgn	Sign of the gamma function.
mars.tensor.special.gammainc	Regularized lower incomplete gamma function.
mars.tensor.special.gammaincinv	Inverse to the lower incomplete gamma function with respect to x.
mars.tensor.special.gammaincc	Regularized lower incomplete gamma function.
mars.tensor.special.gammainccinv	Inverse of the upper incomplete gamma function with respect to x
mars.tensor.special.beta	Beta function.
mars.tensor.special.betaln	Natural logarithm of absolute value of beta function.
mars.tensor.special.betainc	Incomplete beta function.
mars.tensor.special.betaincinv	Inverse of the incomplete beta function.
mars.tensor.special.psi	The digamma function.
mars.tensor.special.rgamma	Reciprocal of the gamma function.
mars.tensor.special.polygamma	Polygamma functions.
mars.tensor.special.multigammaln	Returns the log of multivariate gamma, also sometimes called the generalized gamma.
mars.tensor.special.digamma	The digamma function.
mars.tensor.special.poch	Pochhammer symbol.

辅助函数

mars.tensor.special.xlogy

Compute x*log(y) so that the result is 0 if x = 0.

mars.tensor.stats.ttest_rel mars.tensor.special.entr