| % File src/library/stats/man/stat.anova.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2015 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{stat.anova} |
| \title{GLM Anova Statistics} |
| \usage{ |
| stat.anova(table, test = c("Rao","LRT", "Chisq", "F", "Cp"), |
| scale, df.scale, n) |
| } |
| \alias{stat.anova} |
| \arguments{ |
| \item{table}{numeric matrix as results from |
| \code{\link{anova.glm}(\dots, test = NULL)}.} |
| \item{test}{a character string, partially matching one of \code{"Rao"}, |
| \code{"LRT"}, \code{"Chisq"}, \code{"F"} or \code{"Cp"}.} |
| \item{scale}{a residual mean square or other scale estimate to be used |
| as the denominator in an F test.} |
| \item{df.scale}{degrees of freedom corresponding to \code{scale}.} |
| \item{n}{number of observations.} |
| } |
| \description{This is a utility function, used in \code{lm} and |
| \code{glm} methods for \code{\link{anova}(\dots, test != NULL)} |
| and should not be used by the average user. |
| } |
| \value{ |
| A matrix which is the original \code{table}, augmented by a column |
| of test statistics, depending on the \code{test} argument. |
| } |
| \references{ |
| Hastie, T. J. and Pregibon, D. (1992) |
| \emph{Generalized linear models.} |
| Chapter 6 of \emph{Statistical Models in S} |
| eds J. M. Chambers and T. J. Hastie, Wadsworth & Brooks/Cole. |
| } |
| \seealso{\code{\link{anova.lm}}, \code{\link{anova.glm}}.} |
| \examples{ |
| ##-- Continued from '?glm': |
| \dontshow{utils::example("glm", echo = FALSE)} |
| print(ag <- anova(glm.D93)) |
| stat.anova(ag$table, test = "Cp", |
| scale = sum(resid(glm.D93, "pearson")^2)/4, |
| df.scale = 4, n = 9) |
| } |
| \keyword{regression} |
| \keyword{models} |