Recast

melt and cast data in a single step

recast(data, formula, ..., id.var, measure.var)

Author

Hadley Wickham <h.wickham@gmail.com>

Arguments

data

Data set to melt

formula

Casting formula, see cast for specifics

...

Other arguments passed to cast

id.var

Identifying variables. If blank, will use all non measure.var variables

measure.var

Measured variables. If blank, will use all non id.var variables

Details

This conveniently wraps melting and casting a data frame into one step.

See also

http://had.co.nz/reshape/

Examples

recast(french_fries, time ~ variable, id.var=1:4)
#> Aggregation requires fun.aggregate: length used as default
#>    time potato buttery grassy rancid painty
#> 1     1     72      72     72     72     72
#> 2     2     72      72     72     72     72
#> 3     3     72      72     72     72     72
#> 4     4     72      72     72     72     72
#> 5     5     72      72     72     72     72
#> 6     6     72      72     72     72     72
#> 7     7     72      72     72     72     72
#> 8     8     72      72     72     72     72
#> 9     9     60      60     60     60     60
#> 10   10     60      60     60     60     60