model_matrix: Model matrices along with compact encodings of data...

In RItools: Randomization Inference Tools

Model matrices along with compact encodings of data availability/missingness

Description

Grow a model matrix while at the same time compactly encoding missingness patterns in RHS variables of a model frame.

Usage

model_matrix(object, data = environment(object), remove.intercept = TRUE, ...)

Arguments

object	Model formula or terms object (as in 'model.matrix')
data	data.frame, as in 'model.matrix()' but has to have ‘(weights)’ column
remove.intercept	logical
...	passed to 'model.matrix.default' (and further)

Value

ModelMatrixPlus, i.e. model matrix enriched with missing data info

Author(s)

Ben B Hansen

RItools documentation built on June 22, 2024, 9:06 a.m.