reshape (version 0.8.10)

expand.grid.df: Expand grid

Description

Expand grid of data frames

Usage

expand.grid.df(..., unique=TRUE)

Author

Hadley Wickham <[e-mail]>

Arguments

...

list of data frames (first varies fastest)

unique

only use unique rows?

Details

Creates new data frame containing all combination of rows from data.frames in ...

Examples

expand.grid.df(data.frame(a=1,b=1:2))
expand.grid.df(data.frame(a=1,b=1:2), data.frame())
expand.grid.df(data.frame(a=1,b=1:2), data.frame(c=1:2, d=1:2))
expand.grid.df(data.frame(a=1,b=1:2), data.frame(c=1:2, d=1:2), data.frame(e=c("a","b")))