gamlss (version 4.2-4)

coef.gamlss: Extract Model Coefficients in a GAMLSS fitted model

Description

coef.gamlss is the GAMLSS specific method for the generic function coef which extracts model coefficients from objects returned by modelling functions. `coefficients' is an alias for coef.

Usage

## S3 method for class 'gamlss':
coef(object, what = c("mu", "sigma", "nu", "tau"), ... )

Arguments

object

a GAMLSS fitted model

what

which parameter coefficient is required, default what="mu"

...

for extra arguments

Value

• Coefficients extracted from the GAMLSS model object.

References

RRigby, 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. Stasinopoulos D. M., Rigby R.A. and Akantziliotou C. (2006) Instructions on how to use the GAMLSS package in R. Accompanying documentation in the current GAMLSS help files, (see also http://www.gamlss.org/). 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, http://www.jstatsoft.org/v23/i07.

See Also

gamlss, deviance.gamlss, fitted.gamlss

Examples

data(aids)
h<-gamlss(y~poly(x,3)+qrt, family=PO, data=aids) # 
coef(h)
rm(h)