ebal (version 0.1-8)

getsquares: Generate Matrix of Squared Terms

Description

Takes a matrix of covariates and generates a new matrix that contains the original covariates and all squared terms. Squared terms for binary covariates are omitted.

Usage

getsquares(mat)

Arguments

mat

n by k numeric matrix of covariates.

Value

n by k*2 numeric matrix that contains the original covariates plus all squared terms.

See Also

See matrixmaker

Examples

# NOT RUN {
# create toy matrix
mold <- replicate(3,rnorm(50))
colnames(mold) <- paste("x",1:3,sep="")
head(mold)
# create new matrix
mnew <- getsquares(mold)
head(mnew)
# }