class statsmodels.genmod.families.links.Log
[source]
The log transform
call and derivative call a private method _clean to trim the data by machine epsilon so that p is in (0,1). log is an alias of Log.
deriv (p) | Derivative of log transform link function |
deriv2 (p) | Second derivative of the log transform link function |
inverse (z) | Inverse of log transform link function |
inverse_deriv (z) | Derivative of the inverse of the log transform link function |
© 2009–2012 Statsmodels Developers
© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.genmod.families.links.Log.html