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nlme (version 3.1-114)

asTable: Convert groupedData to a matrix

Description

Create a tabular representation of the response in a balanced groupedData object.

Usage

asTable(object)

Arguments

object
A balanced groupedData object

Value

  • A matrix. The data in the matrix are the values of the response. The columns correspond to the distinct values of the primary covariate and are labelled as such. The rows correspond to the distinct levels of the grouping factor and are labelled as such.

Details

A balanced groupedData object can be represented as a matrix or table of response values corresponding to the values of a primary covariate for each level of a grouping factor. This function creates such a matrix representation of the data in object.

References

Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.

See Also

groupedData, isBalanced, balancedGrouped

Examples

Run this code
asTable(Orthodont)

# Pinheiro and Bates, p. 109
ergoStool.mat <- asTable(ergoStool)

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