detectWeirdLevelNamesDT: Detecting which levels of which factor of a data.table object...

In R2DT: Translation of Base R-Like Functions for 'data.table' Objects

Description

Detecting which levels of which factor of a data.table object contain non-alpha numeric characters (including whitespace) characters

Usage

detectWeirdLevelNamesDT(inputDT)

Arguments

inputDT

data.table object containing the data of interest. This is an obligatory argument, without default value.

Value

No value is returned. Note that a valid value needs to be supplied to the 'colNamesToBeChecked' argument in order to make this function work.

Examples

library(data.table)
inputDT <- as.data.table(data.frame(x = seq(1, 20, 2)))
detectWeirdLevelNamesDT(inputDT)

inputDT <- as.data.table(data.frame(x = seq(1, 20, 2), y = LETTERS[1:10]))
asFactorDT(inputDT, c('y'))
detectWeirdLevelNamesDT(inputDT)

inputDT <- as.data.table(data.frame(x = c(rep('test_', 5), rep('test@', 5)),
y = c(rep('test_', 5), rep('test@', 5))))
asFactorDT(inputDT, c('x', 'y'))
detectWeirdLevelNamesDT(inputDT)

R2DT documentation built on March 26, 2020, 5:59 p.m.