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bundles / scipy latest / scipy / stats / _continuous_distns / _pow1pm1

function

scipy.stats._continuous_distns:_pow1pm1

source: /scipy/stats/_continuous_distns.py :2243

Signature

def   _pow1pm1 ( x ,  y )

Summary

Compute (1 + x)**y - 1.

Extended Summary

Uses expm1 and xlog1py to avoid loss of precision when (1 + x)**y is close to 1.

Note that the inverse of this function with respect to x is _pow1pm1(x, 1/y). That is, if

t = _pow1pm1(x, y)

then

x = _pow1pm1(t, 1/y)

Aliases

  • scipy.stats._continuous_distns._pow1pm1