Parse Formulas
Utilities for extracting portions of formulas.
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, ...)
formula, |
a formula |
... |
additional arguments, current ignored |
x, |
an object (currently a |
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.
an object of class parsedFormula from which information is easy to extract
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.