is.formula {Zelig}R Documentation

Whether an Object is a Formula

Description

This is a boolean-check to see whether an object is a formula.

Usage

  is.formula(x)

Arguments

x

an object

Value

a logical specifying whether an object is a formula

Note

This will not be shared in the Zelig/ZeligFormulae namespace.

Author(s)

Matt Owen

[Package Zelig version 4.2-1 Index]