[R] Odp: how to sample a block

Petr PIKAL petr.pikal at precheza.cz
Mon Nov 10 13:48:01 CET 2008


Hi

r-help-bounces at r-project.org napsal dne 10.11.2008 13:25:41:

> 
> Hi,
> I want to sample a block of information.
> 
> Let's say x is a time series. Using sample(x,5) I get a random sample of
> length 5 from x.
> 
> Is it possible to sample consecutive observations, i.e. I sample one
> observation and also get the next 4 observations?

Easy

sam <-  sample(x,1)
x[sam:(sam+4)]

Regards
Petr



> 
> Thanks a lot!
> 
> Martin
> -- 
> View this message in context: 
http://www.nabble.com/how-to-sample-a-block-
> tp20418997p20418997.html
> Sent from the R help mailing list archive at Nabble.com.
> 
> ______________________________________________
> R-help at 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.



More information about the R-help mailing list