dad (version 4.1.6)

getcol.folder: Select columns in all elements of a folder

Description

Select columns in all data frames of a folder.

Usage

getcol.folder(object, name)

Value

A folder with the same number of elements as object. Its \(k^{th}\) element is a data frame, and its columns are the columns of object[[k]] given by name.

Arguments

object

object of class folder that is a list of data frames with the same column names.

name

character vector. The names of the columns to be selected in each data frame of the folder.

Author

Rachid Boumaza, Pierre Santagostini, Smail Yousfi, Gilles Hunault, Sabine Demotes-Mainard

See Also

folder: object of class folder.

rmcol.folder: remove columns in all elements of a folder.

getrow.folder: select rows in all elements of a folder.

rmrow.folder: remove rows in all elements of a folder.

Examples

data(iris)

iris.fold <- as.folder(iris, "Species")
getcol.folder(iris.fold, "Sepal.Length")
getcol.folder(iris.fold, c("Petal.Length", "Petal.Width"))