select: Select multiple columns

In steinbaugh/transformer: Coercion methods for biological data

Description

Select multiple columns

Usage

selectIf(object, predicate, ...)

## S4 method for signature 'DataFrame,'function''
selectIf(object, predicate)

Arguments

object	Object.
predicate	function. A predicate function to be applied to the columns. For example, is.atomic().
...	Additional arguments.

Value

Modified object.

Note

Updated 2019-08-26.

See Also

These functions are inspired by dplyr. However, they are designed to only work on DataFrame class, and use base R code internally.

`help(topic = "select_all", package = "dplyr")`

Examples

data(iris, package = "datasets")

## DataFrame ====
x <- as(iris, "DataFrame")
selectIf(x, predicate = is.factor)

steinbaugh/transformer documentation built on Jan. 9, 2020, 12:53 p.m.