if.R | R Documentation |

`if.R`

uses the `is.R`

function to determine whether to
execute the expression in the `r`

argument or the expression
in the `s`

argument.

if.R(r, s)

`r` |
Any R expression, including a group of expressions nested in braces. Assignments made in this expression are available to the enclosing function. |

`s` |
Any S-Plus expression, including a group of expressions nested in braces. Assignments made in this expression are available to the enclosing function. |

Not all functions are in both implementations of the S language. In
particular, panel functions for `lattice`

in R (based on
`grid`

graphics) are very different from panel functions for
`trellis`

(based on the older graphics technology) in S-Plus.

The result of the executed expression.

Richard M. Heiberger <rmh@temple.edu>

`is.R`

if.R(r={"This is R."}, s={"This is S-Plus"})

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