skpr: contr.simplex – R documentation

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contr.simplex

Orthonormal Contrast Generator

Description

Generates orthonormal (orthogonal and normalized) contrasts. Each row is the vertex of an N-dimensional simplex. The only exception are contrasts for the 2-level case, which return 1 and -1.

Usage

contr.simplex(n, size = NULL)

Arguments

`n`	The number of levels in the catagorical variable.
`size`	Default '1'. The length of the simplex vector.

Value

A matrix of Orthonormal contrasts.

Examples

contr.simplex(4)

skpr

Design of Experiments Suite: Generate and Evaluate Optimal Designs

v0.66.5

GPL-3

Authors

Tyler Morgan-Wall [aut, cre], George Khoury [aut]

Initial release