OK, thanks it works fine. Sorry for the late answer.
best, David Biau. ________________________________ De : Dirk Eddelbuettel <[email protected]> Cc : R-debian <[email protected]> Envoyé le : Ven 25 mars 2011, 21h 33min 07s Objet : Re: [R-sig-Debian] set.seed On 26 March 2011 at 00:30, Biau David wrote: | Dear list, | | It looks like set.seed does not work for me (see code below). I am running | Debian squeeze. Is this an issue with the distribution or with my understanding | of the function? I'm pretty sure, but not certain, it used to work that way on | windows | | > runif(5) | [1] 0.6516557 0.5677378 0.1135090 0.5959253 0.3580500 | > runif(5) | [1] 0.42880942 0.05190332 0.26417767 0.39879073 0.83613414 | > set.seed(15) | > runif(5) | [1] 0.6021140 0.1950439 0.9664587 0.6509055 0.3670719 | > runif(5) | [1] 0.9888592 0.8151934 0.2539684 0.6872308 0.8314290 | | Any help would be appreciated. Thx, You need to set the seed, then draw -- then re-seed and re-draw: R> set.seed(42); runif(3); rnorm(3) [1] 0.0161408 0.0922721 0.5505511 [1] -1.0898031 -0.0143024 0.5808842 R> set.seed(42); runif(3); rnorm(3) [1] 0.0161408 0.0922721 0.5505511 [1] -1.0898031 -0.0143024 0.5808842 R> runif(3); rnorm(3) [1] 0.623570 0.854190 0.420727 [1] -0.246359 0.195088 0.160348 R> Identical when I fix the seed, not when I don't. Makes sense? Dirk -- Dirk Eddelbuettel | [email protected] | http://dirk.eddelbuettel.com [[alternative HTML version deleted]]
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