to avoid the transposition you can use
rbind(matrix(d, nrow=3), 0)
baptiste auguie schrieb:
Perhaps you can try this,
d <- c(0.00377467, 0.00377467, 0.00377467, 0.00380083,
0.00380083, 0.00380083,
0.00380959, 0.00380959, 0.00380959, 0.00380083, 0.00380083,
0.00380083)
c( t( cbind(matrix(d, ncol=3, byrow=T), 0)))
I don't know how to avoid the transpose operation that might slow
things down in large cases.
Hope this helps,
baptiste
On 19 Feb 2009, at 12:47, jim holtman wrote:
How about this:
dat<-c(0.00377467,0.00377467,0.00377467,0.00380083,0.00380083,0.00380083,0.00380959,
+ 0.00380959,0.00380959,0.00380083,0.00380083,0.00380083)
dat[seq(1, by=3, to=length(dat))] <- 0
dat
[1] 0.00000000 0.00377467 0.00377467 0.00000000 0.00380083 0.00380083
0.00000000 0.00380959 0.00380959 0.00000000 0.00380083
[12] 0.00380083
On Thu, Feb 19, 2009 at 1:47 AM, Gundala Viswanath
<gunda...@gmail.com> wrote:
Hi,
I have a vector that look like this:
dat
V1 V2 V3 V4 V5 V6
0.00377467 0.00377467 0.00377467 0.00380083 0.00380083 0.00380083
V7 V8 V9 V10 V11 V12
0.00380959 0.00380959 0.00380959 0.00380083 0.00380083 0.00380083
what I want to do is to insert 0 (zero) for every 3 position yielding:
V1 V2 V3 V4 V5 V6
V7 V8
0 0.00377467 0.00377467 0.00377467 0 0.00380083 0.00380083 0.00380083
V9 V10 V11 V12 V13 V14
V15 V16
0 0.00380959 0.00380959 0.00380959 0 .00380083 0.00380083 0.00380083
Is there a quick way to do it in R?
- Gundala Viswanath
Jakarta - Indonesia
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
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_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
______________________________________________
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PLEASE do read the posting guide
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and provide commented, minimal, self-contained, reproducible code.
--
Eik Vettorazzi
Institut für Medizinische Biometrie und Epidemiologie
Universitätsklinikum Hamburg-Eppendorf
Martinistr. 52
20246 Hamburg
T ++49/40/42803-8243
F ++49/40/42803-7790
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and provide commented, minimal, self-contained, reproducible code.
