is.empty.model

From stats v3.2.5 by R-core R-core@R-project.org

Test if a Model's Formula is Empty

R's formula notation allows models with no intercept and no predictors. These require special handling internally. is.empty.model() checks whether an object describes an empty model.

Keywords: models

Usage

is.empty.model(x)

Arguments

x: A terms object or an object with a terms method.

Value

TRUE if the model is empty

Examples

library(stats)

y <- rnorm(20)
is.empty.model(y ~ 0)
is.empty.model(y ~ -1)
is.empty.model(lm(y ~ 0))

Documentation reproduced from package stats, version 3.2.5, License: Part of R 3.2.5

Community examples

Looks like there are no examples yet.