[R] Problem with the recode function

John Fox jfox at mcmaster.ca
Tue Jun 15 17:53:28 CEST 2010


Dear Alain,

I'm afraid that I can't duplicate your problem. First, there is no recode
function in the Rcmdr package; it uses recode from car. 

Here's a record of my Rcmdr session, using the recode dialog to generate the
recode command:

> test$variable <- recode(test$x, '1:5=0; else=1; ', as.factor.result=TRUE)

> test # entered in script window
    x variable
1   1        0
2   2        0
3   3        0
4   4        0
5   5        0
6   6        1
7   7        1
8   8        1
9   9        1
10 10        1

I noticed that you set as.factor.result=TRUE for one command and FALSE for
the other, but both work for me. It occurred to me that you may have entered
the recode command in the script window and executed it from there, but that
works for me too.

Best,
 John

--------------------------------
John Fox
Senator William McMaster 
  Professor of Social Statistics
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
web: socserv.mcmaster.ca/jfox


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On
> Behalf Of Alain Guillet
> Sent: June-15-10 10:58 AM
> To: r-help at r-project.org
> Subject: [R] Problem with the recode function
> 
> Hello,
> 
> I am using the recode() function in Rcmdr and the result is not what I
> expect so I am almost sure I did something wrong but what...
> 
>  > test <- data.frame(x=1:10)
>  > library(car)
>  > recode(test$x,'1:5=0 ; else=1', as.factor.result=TRUE)
>   [1] 0 0 0 0 0 1 1 1 1 1
> Levels: 0 1
> 
> BUT
> 
>  > library(Rcmdr)  #  recode from the car package is now masked
> 
> Now I recode test$x through the Rmcdr interface and I get the following
> code :
> test$variable <- recode(test$x, '1:5 = 0; else = 1; ',
> as.factor.result=FALSE)
>   And a vector of NA as result.
> 
>  > test$variable
> [1] NA NA NA NA NA NA NA NA NA NA
> 
> I am using R 2.11.1 with Rcmdr 1.5-5 on Windows Vista.
> 
> 
> Regards,
> Alain
> 
> --
> Alain Guillet
> Statistician and Computer Scientist
> 
> SMCS - IMMAQ - Université catholique de Louvain
> Bureau c.316
> Voie du Roman Pays, 20
> B-1348 Louvain-la-Neuve
> Belgium
> 
> tel: +32 10 47 30 50
> 
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