Re: [R] Problem with the recode function

From: John Fox <jfox_at_mcmaster.ca>
Date: Tue, 15 Jun 2010 11:53:28 -0400

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@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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> and provide commented, minimal, self-contained, reproducible code.



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