| % File src/library/base/man/tilde.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2013 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{tilde} |
| \alias{~} |
| \alias{tilde} |
| \title{Tilde Operator} |
| \description{ |
| Tilde is used to separate the left- and right-hand sides in a model formula. |
| } |
| \usage{ |
| y ~ model |
| } |
| \arguments{ |
| \item{y, model}{symbolic expressions.} |
| } |
| \details{ |
| The left-hand side is optional, and one-sided formulae are used in |
| some contexts. |
| |
| A formula has \link{mode} \code{\link{call}}. It can be subsetted by |
| \code{[[}: the components are \code{~}, the left-hand side (if |
| present) and the right-hand side \emph{in that order}. |
| } |
| \references{ |
| Chambers, J. M. and Hastie, T. J. (1992) |
| \emph{Statistical models.} |
| Chapter 2 of \emph{Statistical Models in S} |
| eds J. M. Chambers and T. J. Hastie, Wadsworth & Brooks/Cole. |
| } |
| \seealso{ |
| \code{\link{formula}} |
| } |
| \keyword{models} |