nparam.vlm {VGAM} | R Documentation |
Returns the number of parameters in a fitted model object.
nparam(object, ...) nparam.vlm(object, dpar = TRUE, ...) nparam.vgam(object, dpar = TRUE, linear.only = FALSE, ...) nparam.rrvglm(object, dpar = TRUE, ...) nparam.qrrvglm(object, dpar = TRUE, ...) nparam.rrvgam(object, dpar = TRUE, ...)
object |
Some VGAM object, for example, having
class |
... |
Other possible arguments fed into the function. |
dpar |
Logical, include any (estimated) dispersion parameters as a parameter? |
linear.only |
Logical, include only the number of linear (parametric) parameters? |
The code was copied from the AIC()
methods functions.
Returns a numeric value with the corresponding number of parameters.
For vgam
objects, this may be real rather than
integer, because the nonlinear degrees of freedom is real-valued.
This code has not been double-checked.
T. W. Yee.
VGLMs are described in vglm-class
;
VGAMs are described in vgam-class
;
RR-VGLMs are described in rrvglm-class
;
AICvlm
.
pneumo <- transform(pneumo, let = log(exposure.time)) (fit1 <- vglm(cbind(normal, mild, severe) ~ let, propodds, data = pneumo)) coef(fit1) coef(fit1, matrix = TRUE) nparam(fit1) (fit2 <- vglm(hits ~ 1, poissonff, weights = ofreq, data = V1)) coef(fit2) coef(fit2, matrix = TRUE) nparam(fit2) nparam(fit2, dpar = FALSE)