select: select columns of a data.frame

In m61r: Package About Data Manipulation in Pure Base R

select columns of a data.frame

Description

Select columns of a data.frame.

Usage

select_(df, variable = NULL)

Arguments

df	data.frame
variable	formula that describes the selection

Value

select_() returns a data frame. Properties:

• Only columns following the condtion determined by

• variable appear.

• Rows are not modified.

Examples

  tmp <- select_(CO2,~Type)
  head(tmp)

  tmp <- select_(CO2,~c(Plant,Type))
  head(tmp)

  tmp <- select_(CO2,~-Type)
  head(tmp)

  tmp <- select_(CO2,variable=~-(Plant:Treatment))
  head(tmp)

m61r documentation built on May 6, 2022, 5:07 p.m.