[R] Odp: how to sample a block

From: Petr PIKAL <petr.pikal_at_precheza.cz>
Date: Mon, 10 Nov 2008 13:48:01 +0100

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
> --
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>
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