Random Seed error

Hi,

I wanted to understand how the "seed" works inside the random component.I was just interested in getting the domain that gives most unique numbers of outputs. Since I need to plug this inside Octopus(E.A). So I did a quick test within a domain 0 to 1 with varying decimal points in numbers and kept increasing the "seed" domain successively to attain the maximum unique numbers. But I received an error after the 4th decimal place. I don't know why because I never asked for integers in the first place.

Thanks in advance.

Attachments:

Random test.gh, 14 KB

Replies to This Discussion

Permalink Reply by Aditya Tognatta on October 10, 2016 at 3:18am

Anyone with any bright ideas?

Permalink Reply by Aditya Tognatta on December 7, 2016 at 6:54am

Any ideas guys

Permalink Reply by Daniel González Abalde on December 7, 2016 at 7:14am

It seems that you are exceeding the maximum integer value: 2147483647.

Put 2147483648 in a panel and plug it to a integer parameter and you will see how that value is the first one positive that does not accept.

This is because this number in binary is 11111111111111111111111111111111 (32s 1), and gh works with int32, the type that stores 32-bit integer numbers.

Permalink Reply by peter fotiadis on December 7, 2016 at 9:34am

My dear Watson

If Omens are OK (min, max, count, Karma) you may find the attached useful (play with decimals as well).

Attachments:

Unique_randoms.gh, 116 KB

Permalink Reply by peter fotiadis on December 7, 2016 at 9:52am

Added some "visual" stuff (that has absolutely no meaning ... therefor is valuable, he he).

Works on thin/thick mode. Avoid the thick option if you have BIG N of numbers in mind

Attachments:

Unique_randoms_V2.gh, 118 KB

Permalink Reply by Aditya Tognatta on December 9, 2016 at 4:53am

Hi Peter,

Longtime, thanks for the script; fancy visuals. Until next time.

Regards,

Aditya

Permalink Reply by peter fotiadis on December 10, 2016 at 12:26am

Moral: when you are after unique randoms (if possible: given the range, the accuracy and the amount of numbers) use a HashSet and be a happy bunny.

For instance if you want to make a gazillion unique randoms between 1 and 2 with accuracy 2 decimals ... well ... keep trying until the end of days, he he.

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