Renames variables in a data frame.

Description

Renames variables in a data frame.

Usage

renameColumns(x, from = "", to = "")

Arguments

Value

The updated data frame x where the variables listed in from are renamed to the corresponding to column names.

See Also

colnames, recoder

Examples

x <- data.frame(x = 1:4, y = LETTERS[1:4])
renameColumns(x, from = c("x","y"), to = c("digits","letters"))

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> library(ETLUtils)
Loading required package: ff
Loading required package: bit
Attaching package bit
package:bit (c) 2008-2012 Jens Oehlschlaegel (GPL-2)
creators: bit bitwhich
coercion: as.logical as.integer as.bit as.bitwhich which
operator: ! & | xor != ==
querying: print length any all min max range sum summary
bit access: length<- [ [<- [[ [[<-
for more help type ?bit

Attaching package: 'bit'

The following object is masked from 'package:base':

    xor

Attaching package ff
- getOption("fftempdir")=="/tmp/RtmpDZrOZh"

- getOption("ffextension")=="ff"

- getOption("ffdrop")==TRUE

- getOption("fffinonexit")==TRUE

- getOption("ffpagesize")==65536

- getOption("ffcaching")=="mmnoflush"  -- consider "ffeachflush" if your system stalls on large writes

- getOption("ffbatchbytes")==16777216 -- consider a different value for tuning your system

- getOption("ffmaxbytes")==536870912 -- consider a different value for tuning your system


Attaching package: 'ff'

The following objects are masked from 'package:bit':

    clone, clone.default, clone.list

The following objects are masked from 'package:utils':

    write.csv, write.csv2

The following objects are masked from 'package:base':

    is.factor, is.ordered

> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/ETLUtils/renameColumns.Rd_%03d_medium.png", width=480, height=480)
> ### Name: renameColumns
> ### Title: Renames variables in a data frame.
> ### Aliases: renameColumns
> 
> ### ** Examples
> 
> x <- data.frame(x = 1:4, y = LETTERS[1:4])
> renameColumns(x, from = c("x","y"), to = c("digits","letters"))
  digits letters
1      1       A
2      2       B
3      3       C
4      4       D
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>