Global Deviance of a GAMLSS model
Returns the global, -2*log(likelihood), or the penalized, -2*log(likelihood)+ penalties, deviance of a fitted GAMLSS model object.
## S3 method for class 'gamlss'
deviance(object, what = c("G", "P"), ...)object |
a GAMLSS fitted model |
what |
put "G" for Global or "P" for Penalized deviance |
... |
for extra arguments |
deviance is a generic function which can be used to extract deviances
for fitted models. deviance.gamlss is the method for a GAMLSS object.
The value of the global or the penalized deviance extracted from a GAMLSS object.
Mikis Stasinopoulos d.stasinopoulos@londonmet.ac.uk
Rigby, R. A. and Stasinopoulos D. M. (2005). Generalized additive models for location, scale and shape,(with discussion), Appl. Statist., 54, part 3, pp 507-554.
Rigby, R. A., Stasinopoulos, D. M., Heller, G. Z., and De Bastiani, F. (2019) Distributions for modeling location, scale, and shape: Using GAMLSS in R, Chapman and Hall/CRC. An older version can be found in https://www.gamlss.com/.
Stasinopoulos D. M. Rigby R.A. (2007) Generalized additive models for location scale and shape (GAMLSS) in R. Journal of Statistical Software, Vol. 23, Issue 7, Dec 2007, https://www.jstatsoft.org/v23/i07/.
Stasinopoulos D. M., Rigby R.A., Heller G., Voudouris V., and De Bastiani F., (2017) Flexible Regression and Smoothing: Using GAMLSS in R, Chapman and Hall/CRC.
(see also https://www.gamlss.com/).
data(aids) h<-gamlss(y~poly(x,3)+qrt, family=PO, data=aids) # deviance(h) rm(h)
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