Re: [R] if else elseif for data frames

2012-08-14 Thread PIKAL Petr
Hi What about creating a new column with same factor and just chase its levels. dat2$col2<-dat2$col1 > levels(dat2$col2) [1] "high""low" "Neutral" > levels(dat2$col2)<-c("H", "L","N") > dat2 col1 col2 1 highH 2 NeutralN 3 NeutralN 4 lowL 5 highH 6

Re: [R] if else elseif for data frames

2012-08-13 Thread Rolf Turner
It seems to me that the "recode()" function from the "car" package is what you need. cheers, Rolf Turner On 13/08/12 13:07, Sachinthaka Abeywardana wrote: The thing is I have about 10 cases. I saw the ifelse statement but was wondering if there was a cleaner method of doing it. Th

Re: [R] if else elseif for data frames

2012-08-13 Thread arun
ot;low"="L"') dat2 #  col1 col2 #1 high    H #2  Neutral    N #3  Neutral    N #4  low    L #5 high    H #6  low    L #7  low    L #8  Neutral    N #9  Neutral    N #10    high    H A.K. ________________ From: Sachinthaka Abeywardana To:

Re: [R] if else elseif for data frames

2012-08-13 Thread arun
_ From: Sachinthaka Abeywardana To: arun Cc: R help Sent: Sunday, August 12, 2012 9:07 PM Subject: Re: [R] if else elseif for data frames The thing is I have about 10 cases. I saw the ifelse statement but was wondering if there was a cleaner method of doing it. The coding will get re

Re: [R] if else elseif for data frames

2012-08-12 Thread R. Michael Weylandt
On Sun, Aug 12, 2012 at 8:07 PM, Sachinthaka Abeywardana wrote: > The thing is I have about 10 cases. I saw the ifelse statement Note that there is no "ifelse" statement: there is only nested if/else of forms if else if else if else > but was > wondering if

Re: [R] if else elseif for data frames

2012-08-12 Thread David Winsemius
On Aug 12, 2012, at 5:43 PM, Sachinthaka Abeywardana wrote: Hi all, It seems like I cannot use normal 'if' for data frames. What would be the best way to do the following. if data$col1='high' data$col2='H' else if data$col1='Neutral' data$col2='N' else if data$col='low' data$col2='

Re: [R] if else elseif for data frames

2012-08-12 Thread Jeff Newmiller
Maybe the cut function? ?cut --- Jeff NewmillerThe . . Go Live... DCN:Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Pl

Re: [R] if else elseif for data frames

2012-08-12 Thread jim holtman
You might look at the 'recode' that is part of the 'car' package. You can also setup a dataframe with two columns; one with the current value and one with the new value you want, then you can use 'merge' or 'match' to create your new column. If you have provided some sample data, I could have pro

Re: [R] if else elseif for data frames

2012-08-12 Thread arun
Hi, Try this: dat1<-data.frame(col1=c(rep("high",3),rep("Neutral",3),rep("low",4)))  dat1$col2<-ifelse(dat1$col1=="high",dat1$col2<-"H",ifelse(dat1$col1=="Neutral",dat1$col2<-"N","L")) dat1   col1 col2 1 high    H 2 high    H 3 high    H 4  Neutral    N 5  Neutral    N 6  Neutral   

Re: [R] if else elseif for data frames

2012-08-12 Thread Sachinthaka Abeywardana
The thing is I have about 10 cases. I saw the ifelse statement but was wondering if there was a cleaner method of doing it. The coding will get really messy when I write all 10 cases. Cheers, Sachin On Mon, Aug 13, 2012 at 11:04 AM, arun wrote: > Hi, > Try this: > dat1<-data.frame(col1=c(rep("h