Re: [Numpy-discussion] Right behavior

[Tim C. <tc...@op...>]

> Johan Fredrik =D8hman wrote:
>=20
> This code generates very non-random numbers, even when the seed value
> is reinitialized.
> Take a look at the first number in each run !
>=20

The first numbers in each of your three runs are 7.98493051529 ,
7.98525762558 and 7.98623776436.
They look like different numbers to me. If you want the difference
between initial values to be greater, you need to make the=20
difference in your seeds greater. For example, if I run your code now, I
get 8.29225027561, 8.29484963417 and 8.29744851589, but setting the seed
to (1,2) gives an initial value of 5.69397783279. Remember, these are
only pseudorandom numbers.=20

Tim C

 =20
> Is this right ?
>=20
> --
> JF=D8
>=20
>=20
> #!/usr/local/bin/python2.1
>=20
> # Python Virtual clock
> import RandomArray
>=20
> print "Seed", RandomArray.get_seed()
> for i in range(1000000,10000000,1000000):
>         print "Clock at time:" , i/1000000, ":",
> RandomArray.normal(10,2)
>=20
>=20
> [root@blekkulf /root]# ./t2.py
> Seed (101743, 1951)
> Clock at time: 1 : 7.98493051529
> Clock at time: 2 : 10.8439420462
> Clock at time: 3 : 7.59234881401
> Clock at time: 4 : 7.32021093369
> Clock at time: 5 : 10.9444898367
> Clock at time: 6 : 10.1128772199
> Clock at time: 7 : 13.1178274155
> Clock at time: 8 : 11.779414773
> Clock at time: 9 : 10.7529922128
> [root@blekkulf /root]# ./t2.py
> Seed (101743, 1953)
> Clock at time: 1 : 7.98525762558
> Clock at time: 2 : 9.38142818213
> Clock at time: 3 : 7.11979293823
> Clock at time: 4 : 10.867649436
> Clock at time: 5 : 9.62882992625
> Clock at time: 6 : 12.1940765381
> Clock at time: 7 : 6.84895467758
> Clock at time: 8 : 8.13472533226
> Clock at time: 9 : 8.15638375282
> [root@blekkulf /root]# ./t2.py
> Seed (101743, 1959)
> Clock at time: 1 : 7.98623776436
> Clock at time: 2 : 14.5040078163
> Clock at time: 3 : 11.3408681154
> Clock at time: 4 : 6.32757425308
> Clock at time: 5 : 8.94617521763
> Clock at time: 6 : 12.1802353859
> Clock at time: 7 : 12.0685124397
> Clock at time: 8 : 10.5330892205
> Clock at time: 9 : 10.9744755626