On 3/29/2015 11:10 PM, Partha Sinha wrote:
I have 1000 data points. i want to take 30 samples and find mean. I
also want to repeat this process 100 times. How to go about it?
Regards
Parth
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
see ?replicate and ?sample. Simple example where yourdata is a simple
vector of values, and assuming you want to sample without replacement.
Generalizing it to other data structures is left as an exercise for the
reader.
replicate(100,mean(sample(yourdata,30, replace=FALSE)))
hope this is helpful,
Dan
--
Daniel Nordlund
Bothell, WA USA
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
