On Apr 14, 2010, at 2:56 AM, Simon Kiss wrote:
Dear colleagues,
in the help archive there was a previous person who encountered a
problem with the "recode" command in the car library. I'm not sure
if that was solved, there was no posting to that effect, but I'm
having the same problem.
I'm trying to recode a numeric variable with values from 0-100 into
a binary variable with values (0,1).
The following command:
recode(green_2004_2$french, "c(50:100)=0; c(0:49.99)=1")
Look at the last example in the recode help page:
recode(x, "1:2='A'; 3='B'")
## [1] "A" "A" "B" "A" "A" "B" "A" "A" "B"
It appears to me that the c() function around your sequences may be
part of the problem and I further wondered whether 0:49.99 can
succeed. Generally the ":" operator expects integer arguments, but the
help page is not clear in this area and it appears that recode has a
different interpretation.
> require(car)
> recode(x, "-Inf:0=-1; 0.000001:Inf=1") # succeeds
--
David
gets the following error message
Error in parse(text = range[[1]][1]) : unexpected end of input in "
c(0"
I tried it with a second numerical variable in the same data set,
but get precisely the same error at precisely the same location in
the command, i.e. the second colon.
As far as I can tell I have the most up-to-date version of car
installed.
Any suggestions?
Yours, Simon Kiss
*********************************
Simon J. Kiss, PhD
SSHRC and DAAD Post-Doctoral Fellow
John F. Kennedy Institute of North America Studies
Free University of Berlin
Lansstraße 7-9
14195 Berlin, Germany
Cell: +49 (0)1525-300-2812,
Web: http://www.jfki.fu-berlin.de/index.html
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and provide commented, minimal, self-contained, reproducible code.
