R help - Nov 2008 - how to sample a block

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?

Thanks a lot!

Martin
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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.
> 
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