deviance_poisson

actual

Strictly positive predicted values.

predicted

Further arguments passed to <code>weighted_mean</code>.

Weighted average of unit Poisson deviance, see reference below. Special case of Tweedie deviance with Tweedie parameter 1.

Provides weighted versions of several metrics, scoring
functions and performance measures used in machine learning, including
average unit deviances of the Bernoulli, Tweedie, Poisson, and Gamma
distributions, see Jorgensen B. (1997, ISBN: 978-0412997112). The
package also contains a weighted version of generalized R-squared, see
e.g. Cohen, J. et al. (2002, ISBN: 978-0805822236). Furthermore,
'dplyr' chains are supported.

Michael Mayer

MetricsWeighted

Weighted Metrics, Scoring Functions and Performance Measures for
Machine Learning

Christian Lorentzen

deviance_poisson function

<dl><dt>actual</dt>
<dd>Observed non-negative values.</dd>
<dt>predicted</dt>
<dd>Strictly positive predicted values.</dd>
<dt>w</dt>
<dd>Optional case weights.</dd>
<dt>...</dt>
<dd>Further arguments passed to <code>weighted_mean</code>.</dd></dl>

Arguments

Poisson Deviance — deviance_poisson

<dl>

<dt>actual</dt>
<dd>Observed non-negative values.</dd>


<dt>predicted</dt>
<dd>Strictly positive predicted values.</dd>


<dt>w</dt>
<dd>Optional case weights.</dd>


<dt>...</dt>
<dd>Further arguments passed to <code>weighted_mean</code>.</dd>

</dl>

deviance_poisson: Poisson Deviance

Description

Usage

Value

Arguments

References

See Also

Examples