400 triples of successive random numbers were taken from the VAX FORTRAN function RANDU running under VMS 1.5.
A data frame with 400 observations on 3 variables named
z which give the first, second and third random
number in the triple.
In three dimensional displays it is evident that the triples fall on 15 parallel planes in 3-space. This can be shown theoretically to be true for all triples from the RANDU generator.
These particular 400 triples start 5 apart in the sequence, that is they are ((U[5i+1], U[5i+2], U[5i+3]), i= 0, ..., 399), and they are rounded to 6 decimal places.
Under VMS versions 2.0 and higher, this problem has been fixed.
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