dummies: Create dummy/indicator variables flexibly and efficiently

CRAN: http://cran.r-project.org/web/packages/dummies/index.html
URL: http://www.decisionpatterns.com

> library(dummies)

バージョン: 1.5.6

関数名	概略
`dummies-package`	Create and manipulate dummy variables flexibly and efficiently
`dummy`	Flexible, efficient creation of dummy variables.
`get.dummy`	Get the dummy variable columns from a data frame.
`which.dummy`	Identify which columns are dummy variables on a data frame.

get.dummy

> d <- dummy.data.frame(iris)
> get.dummy(d, "Species") %>% str()

'data.frame':    150 obs. of  3 variables:
 $ Speciessetosa    : int  1 1 1 1 1 1 1 1 1 1 ...
 $ Speciesversicolor: int  0 0 0 0 0 0 0 0 0 0 ...
 $ Speciesvirginica : int  0 0 0 0 0 0 0 0 0 0 ...