[R] Problem with random numbers/seed

[Steven Yen]

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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