[R] Problem with random numbers/seed
Steven Yen
@tyen @end|ng |rom ntu@edu@tw
Fri Jun 21 18:10:19 CEST 2019
Dear all,
I did all this work with older R (R-3.5.3.patched and older)
but now with R3.6 I cannot replicate the results.
Below I sample 60 observations from 1:500 using the sample command with
a random seed of 123. I get different results. Advice appreciated.
Steven Yen
> # Run under R-3.6.0
> x<-1:500
> set.seed(12345671)
> j<-sample(1:length(x),size=60); y<-x[j]
> summary(y)
Min. 1st Qu. Median Mean 3rd Qu. Max.
26.0 134.2 240.0 249.8 368.0 500.0
> # Run under R-3.5.3.patched
> x<-1:500
> set.seed(12345671)
> j<-sample(1:length(x),size=60); y<-x[j]
> summary(y)
Min. 1st Qu. Median Mean 3rd Qu. Max.
9.0 122.2 205.0 236.1 364.2 493.0
--
styen using ntu.edu.tw (S.T. Yen)
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