Do you want the count of remaining elements which are strictly
greater than the first element?
> length(which(a[1] < a[2:10]))
[1] 4
or perhaps a bit more deviously:
> sum( a[1]<a[2:10]+0 ) #adding 0 to TRUE or FALSE creates 1 or 0.
[1] 4
--
David Winsemius, MD
Heritage Labs.
On Oct 31, 2008, at 7:56 PM, sandsky wrote:
Hi there,
I have a data set:
a=cbind(5,2,4,7,8,3,4,11,1,20)
I want to count # of data, satistfying a[1]<a[2:10].
Anyone helps me solving this case?
Thank you in advance,
Jin
--
View this message in context:
http://www.nabble.com/count-data-with-some-conditions-tp20275722p20275722.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
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.
______________________________________________
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.