Compute an analysis of variance table for one or more robust generalized linear model fits.
Usage
## S3 method for class 'glmRob'
anova(object, ..., test = c("none", "Chisq", "F", "Cp"))
## S3 method for class 'glmRoblist'
anova(object, ..., test = c("none", "Chisq", "F", "Cp"))
Arguments
object
a glmRob object.
...
additional glmRob objects.
test
a character string specifying the test statistic to be used. Can be one of "F", "Chisq", "Cp" or "none" for no test.
Value
an anova object.
See Also
glmRob,
anova,
anova.glmRoblist.
Examples
data(breslow.dat)
bres.int <- glmRob(sumY ~ Age10 + Base4*Trt, family = poisson(), data = breslow.dat)
anova(bres.int)
bres.main <- glmRob(sumY ~ Age10 + Base4 + Trt, family = poisson(), data = breslow.dat)
anova(bres.main, bres.int)