splitcol: take a data.table, split col into multiple columns based...

In quicksea/workutil: sxp r toolbox

Description

in place change to dt

Usage

splitcol(dt, col, sep1 = "_", sep2 = ":", mode = 1,
  splitcolnames = NULL)

Arguments

dt	a data.table
col	column to split, quote
sep1	level 1 sep1
sep2	level 1 sep2
mode	default 1
splitcolnames	used in mode 0, names of splitted columns

Value

no return, inplace change to dt

Examples

mode 1: split "X:1_Y:2" into two columns X,Y, fill with 1,2;
mode 0: split "1_2" into 1 and 2, column names defined by splitcolnames if given, otherwise use V1,V2...

quicksea/workutil documentation built on May 26, 2019, 1:31 p.m.