On Mar 16, 2011, at 1:21 PM, Henrik Bengtsson wrote:
See ?seq for generating index vectors of different kinds.
/Henrik
Most people will probably understand seq(...) better than they
understand modulo arithmetic, but logical indexing could also be used
for the task:
((1:12) %/% 2) == 0 # substituting length(vector) for 12
--
David.
On Wed, Mar 16, 2011 at 7:43 AM, rens <picca...@hotmail.com> wrote:
Hi
I have a vector m:
m
[1] "ABC transporters"
[2] "2"
[3] "Acetyl-CoA"
[4] "1"
[5] "Energie"
[6] "1"
[7] "FAD Biosynthese"
[8] "1"
[9] "Glyoxylate and dicarboxylate metabolism"
[10] "1"
[11] "Transport"
[12] "1"
and i want to do take the even or uneven numbers out of them
you can do it lik this:
a<-m[c(1,3,5,7,9,11)]
but i want to do this automatic and i never now how long the vector
is.
Can someone help me?
--
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______________________________________________
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David Winsemius, MD
West Hartford, CT
______________________________________________
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