How to separate comma separated values in R in a new row? -

-

i have dataset follow:

col1    col2        1,2,3 b        ["1","2"] c        4

i want output as:

col1     col2         1         2         3 b         1 b         2 c         4

is possible in r? if yes, how?

you try csplit "splitstackshape" package:

library(splitstackshape) csplit(as.data.table(mydf)[, col2 := gsub("[][\"]", "", col2)],         "col2", ",", "long") #    col1 col2 # 1:       1 # 2:       2 # 3:       3 # 4:    b    1 # 5:    b    2 # 6:    c    4

of course, i'm highly partial csplit, can use "dplyr" , unnest "tidyr":

library(dplyr) library(tidyr)  mydf %>%   mutate(col2 = strsplit(gsub("[][\"]", "", col2), ",")) %>%   unnest(col2)

or "data.table":

library(data.table) as.data.table(mydf)[, list(   col2 = unlist(strsplit(gsub("[][\"]", "", col2), ","))),    = col1]

Comments

Post a Comment

Popular posts from this blog

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5);
Read more

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:
Read more

Python Pig Latin Translator -

-
so have been working on @ codecademy.com while trying learn python. don't know if blind , can't see why won't work or what. here's code won't let me use. function print variable if had typed in , print "empty" if didn't type anything. print "welcome english pig latin translator!" original = raw_input("what's name?") if len(original) > 0 print original else print "empty" if len(original) > 0 else the above lines contains syntax errors. try: if len(original) > 0: else: note added colons, ( : ).
Read more