On Apr 8, 2010, at 8:13 AM, Vlatka Matkovic Puljic wrote:
Dear,
my variable is numerical indicating how many times smb done test
summary(Q12)
Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
0.0000 0.0000 0.0000 0.7989 1.0000 30.0000 66.0000
I want to change this to categories--> 0=none testing; 1:30=done
testing (NA
excluded)
John, *cut(Q12, breaks=c(0,1,30), include.lowest=TRUE, labels=c('0',
'1 and
more'))*
is working.
Only, when I want frequencies (for ex.) for this new 2 categories, R
is
returning me freq for all 0 to 30.
It what fashion are you telling R that you "want frequencies"? Did you
assign the output of cut(Q12, ...) to a new variable?
--
David.
2010/4/7 John Fox <j...@mcmaster.ca>
Dear Vlatka,
It's impossible to know what the problem is without knowing
something about
your data, which you didn't tell us either in this message or your
subsequent one.
The recode command should work:
(x <- c(rep(0, 5), sample(1:30, 5, replace=TRUE)))
[1] 0 0 0 0 0 17 27 19 19 2
recode(x, "0='A'; 1:30='B'")
[1] "A" "A" "A" "A" "A" "B" "B" "B" "B" "B"
The cut command requires include.lowest=TRUE and it helps to spell
the
labels argument correctly:
cut(x, breaks=c(0,1,30), include.lowest=TRUE, labels=c('0', '1 and
more'))
[1] 0 0 0 0 0 1 and more
[7] 1 and more 1 and more 1 and more 1 and more
Levels: 0 1 and more
I hope this helps,
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-boun...@r-project.org [mailto:r-help-boun...@r-project.org
]
On
Behalf Of Vlatka Matkovic Puljic
Sent: April-07-10 1:31 PM
To: r-help@r-project.org
Subject: [R] recoding variables-recode not working
Hi,
I have numerical variable that I want to recode into categories
'0' and
'1
and more' and do analysis with that data.
I have tried various of possibilities to do so, but I am sucked and
nothing
is working.
recode(Q12, "0='A';1:30='B'")
cut(Q12, breaks=c(0,1,30), lables=c('0', '1 and more'))
cat(Q12, "0=0;1-33=1")
What should I do to make it right?
--
**************************
Vlatka
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--
**************************
Vlatka Matković Puljić
095/8618 171
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______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
