How to generate anti-correlated and correlated dataset?

rakeilum · #1 (**permalink**) 02-11-07, 22:39

Hi all,
do you have any idea about how to generate anti-correlated and correlated dataset? any data generator or algorithm for them?
thanks a lot

r937 · #2 (**permalink**) 02-11-07, 23:14

give us a hint: what are anti-correlated and correlated datasets?

andrewst · #3 (**permalink**) 02-18-07, 12:24

I Googled and found this. But I can't help much beyond that! Presumably to generate a corellated dataset you simply generate some random numbers for the first dataset, then generate some smaller random numbers and add them to the first set to make the second set? But no doubt there's more to it than that, with normal distribution etc. taken into consideration...

blindman · #4 (**permalink**) 02-19-07, 09:58

Quote:

Originally Posted by andrewst

Presumably to generate a corellated dataset you simply generate some random numbers for the first dataset, then generate some smaller random numbers and add them to the first set to make the second set?

That sounds like a fractal algorithm, which suggest a recursive routine.

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