Skip to Content
Home » Language reference » manova {stats}

manova {stats}

Multivariate Analysis of Variance
Package: 
stats
Version: 
R 3.0.1

Description

A class for the multivariate analysis of variance.

Usage

manova(...)

Arguments

...
Arguments to be passed to aov.

Details

Class "manova" differs from class "aov" in selecting a different summary method. Function manova calls aov and then add class "manova" to the result object for each stratum.

Values

See aov and the comments in ‘Details’ here.

References

Krzanowski, W. J. (1988) Principles of Multivariate Analysis. A User's Perspective. Oxford.

Hand, D. J. and Taylor, C. C. (1987) Multivariate Analysis of Variance and Repeated Measures. Chapman and Hall.

See Also

aov, summary.manova, the latter containing examples.

Examples

## From Venables and Ripley (2002) p.165.
utils::data(npk, package = "MASS")
 
## 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)

Documentation reproduced from R 3.0.1. License: GPL-2.