designCheck function

designCheck

Checks and/or creates a dummy-coded design matrix.

designCheck(DATA, DESIGN = NULL, make_design_nominal = TRUE)

Arguments

• DATA: original data that should be matched to a design matrix
• DESIGN: a column vector with levels for observations or a dummy-coded matrix
• make_design_nominal: a boolean. Will make DESIGN nominal if TRUE (default).

Details

Returns a properly formatted, dummy-coded (or disjunctive coding) design matrix.

Returns

• DESIGN: dummy-coded design matrix

Author(s)

Derek Beaton

Examples

data <- iris[,c(1:4)]
        design <- as.matrix(iris[,c('Species')])
        iris.design <- designCheck(data,DESIGN=design,make_design_nominal=TRUE)