On Sep 23, 2009, at 5:11 PM, ws wrote:
Webb Sprague <webb.sprague <at> gmail.com> writes:
xtabs(~wkhp, x, exclude=NULL, na.action=na.pass)
wkhp
20 30 40 45 60 <NA>
1 1 10 1 3 4
now this doesn't even work !!!!
Try:
wtf <- factor(x, levels(c(levels(wtf), NA), exclude=NULL)
xtabs (~ wtf, exclude=NULL, na.action=na.pass)
--
David
table(wtf, exclude=NULL)
wtf
[0,10) [10,20) [20,30) [30,40) [40,50) [50,60)
[60,70) [70,80)
8562 15297 9666 6659 3583 667
1357 238
[80,90) [90,100) [100,110) [110,120) [120,130) [130,140) [140,150)
[150,160)
61 311 57 19 95 7
3 111
[180,190) <NA>
161 62161
Compare:
xtabs (~ wtf, exclude=NULL, na.action=na.pass)
wtf
[0,10) [10,20) [20,30) [30,40) [40,50) [50,60)
[60,70) [70,80)
8562 15297 9666 6659 3583 667
1357 238
[80,90) [90,100) [100,110) [110,120) [120,130) [130,140) [140,150)
[150,160)
61 311 57 19 95 7
3 111
[180,190)
161
version
_
platform x86_64-unknown-linux-gnu
arch x86_64
os linux-gnu
system x86_64, linux-gnu
status
major 2
minor 9.2
year 2009
month 08
day 24
svn rev 49384
language R
version.string R version 2.9.2 (2009-08-24)
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
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
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
