[R] Odp: simulation

Petr PIKAL petr.pikal at precheza.cz
Tue May 1 09:20:20 CEST 2007


Hi

r-help-bounces at stat.math.ethz.ch napsal dne 01.05.2007 09:03:46:

> 
> Hello
> 
> I would like to simulate datasets in the following way:
> 
> x <- rpois(999, 2000)
> y <- sum(exp(rgamma(x, scale=2, shape=0.5)))

You computed sum of your 999 values. Regardless of how many values are 
summed the result is always only one number. Did not you want cumsum?

Regards
Petr

> 
> The problem is, that by calling "y" I just get 1 value back and not 999 
> values. Can anyone help me? Thanks!
> 
> Brigitte
> 
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