parse.formula {mosaicCore}

Parse Formulas

Description

Utilities for extracting portions of formulas.

Usage

parse.formula(formula, ...)

rhs(x, ...)

lhs(x, ...)

condition(x, ...)

operator(x, ...)

## S3 method for class 'formula'
rhs(x, ...)

## S3 method for class 'formula'
lhs(x, ...)

## S3 method for class 'formula'
condition(x, ...)

## S3 method for class 'formula'
operator(x, ...)

## S3 method for class 'parsedFormula'
rhs(x, ...)

## S3 method for class 'parsedFormula'
lhs(x, ...)

## S3 method for class 'parsedFormula'
operator(x, ...)

## S3 method for class 'parsedFormula'
condition(x, ...)

Arguments

formula

a formula

...

additional arguments, current ignored

x

an object (currently a formula or parsedFormula)

Details

currently this is primarily concerned with extracting the operator, left hand side, right hand side (minus any condition) and the condition. Improvements/extensions may come in the future.

Value

an object of class parsedFormula from which information is easy to extract