nlme (version 3.1-31)

corCompSymm: Compound Symmetry Correlation Structure

Description

This function is a constructor for the corCompSymm class, representing a compound symmetry structure corresponding to uniform correlation. Objects created using this constructor must later be initialized using the appropriate Initialize method.

Usage

corCompSymm(value, form, fixed)

Value

an object of class corCompSymm, representing a compound symmetry correlation structure.

References

Milliken, G. A. and Johnson, D. E. (1992) "Analysis of Messy Data, Volume I: Designed Experiments", Van Nostrand Reinhold.

See Also

Initialize.corStruct

Examples

## covariate is observation order and grouping factor is Subject
cs1 <- corCompSymm(0.5, form = ~ 1 | Subject)