R: Add Percentage Columns to a Dataframe

pct {caroline} | R Documentation

## Add Percentage Columns to a Dataframe

### Description

This function will add extra columns to an existing dataframe. The second argument 'clmn' should specify which column(s) of the dataframe the percentage should be calculated by dividing each column's row-element by it's sum.

### Usage

    pct(df, clmns)

### Arguments

`df` | A dataframe with numeric columns.
`clmns` | the names of the columns for which the percentage column should be calculated from.

### Value

The original dataframe plus extra percentage columns corresponding to original columns in the dataframe.

### Examples

    df <- data.frame(a=c(1,2,3), b=c('x','y','z'), c=c(5,3,2))
    pct(df, c('a','c'))

[Package caroline version 0.7.6 Index]