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# Adding documentation to the logit and expit ufuncs
from _logit import logit, expit
try:
from numpy.lib import add_newdoc_ufunc
add_newdoc_ufunc(logit,
"""
Logit ufunc for ndarrays.
The logit function is defined as logit(p) = log(p/(1-p)).
Note that logit(0) = -inf, logit(1) = inf, and logit(p)
for p<0 or p>1 yields nan.
Parameters
----------
x : ndarray
The ndarray to apply logit to element-wise.
Returns
-------
out : ndarray
An ndarray of the same shape as x. Its entries
are logit of the corresponding entry of x.
Notes
-----
As a ufunc logit takes a number of optional
keywork arguments. For more information
see `ufuncs <http://docs.scipy.org/doc/numpy/reference/ufuncs.html>`_
""")
add_newdoc_ufunc(expit,
"""
Expit ufunc for ndarrays.
The expit function is defined as expit(x) = 1/(1+exp(-x)).
Note that expit is the inverse logit function.
Parameters
----------
x : ndarray
The ndarray to apply expit to element-wise.
Returns
-------
out : ndarray
An ndarray of the same shape as x. Its entries
are expit of the corresponding entry of x.
Notes
-----
As a ufunc logit takes a number of optional
keywork arguments. For more information
see `ufuncs <http://docs.scipy.org/doc/numpy/reference/ufuncs.html>`_
""")
except ImportError:
pass
|
