| % File src/library/stats/man/manova.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2016 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{manova} |
| \alias{manova} |
| \title{Multivariate Analysis of Variance} |
| \description{ |
| A class for the multivariate analysis of variance. |
| } |
| \usage{ |
| manova(\dots) |
| } |
| \arguments{ |
| \item{\dots}{Arguments to be passed to \code{\link{aov}}.} |
| } |
| \details{ |
| Class \code{"manova"} differs from class \code{"aov"} in selecting a |
| different \code{summary} method. Function \code{manova} calls |
| \code{\link{aov}} and then add class \code{"manova"} to the result |
| object for each stratum. |
| } |
| \value{ |
| See \code{\link{aov}} and the comments in \sQuote{Details} here. |
| } |
| % \note{ |
| % \code{manova} does not support multistratum analysis of variance, so |
| % the formula should not include an \code{Error} term. |
| % } |
| \references{ |
| Krzanowski, W. J. (1988) \emph{Principles of Multivariate Analysis. A |
| User's Perspective.} Oxford. |
| |
| Hand, D. J. and Taylor, C. C. (1987) |
| \emph{Multivariate Analysis of Variance and Repeated Measures.} |
| Chapman and Hall. |
| } |
| \seealso{ |
| \code{\link{aov}}, \code{\link{summary.manova}}, the latter containing |
| more examples. |
| } |
| \examples{ |
| ## Set orthogonal contrasts. |
| op <- options(contrasts = c("contr.helmert", "contr.poly")) |
| |
| ## Fake a 2nd response variable |
| npk2 <- within(npk, foo <- rnorm(24)) |
| ( npk2.aov <- manova(cbind(yield, foo) ~ block + N*P*K, npk2) ) |
| summary(npk2.aov) |
| |
| ( npk2.aovE <- manova(cbind(yield, foo) ~ N*P*K + Error(block), npk2) ) |
| summary(npk2.aovE) |
| } |
| \keyword{models} |