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Re: Generate Same Sequence of Random Numbers in IDL and C [message #89083 is a reply to message #89079]

Wed, 23 July 2014 11:03

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 7/23/14, 10:52 AM, sweiss1993@gmail.com wrote:
> So I made a couple of test programs myself to show you the context of
> my problem.
>
> IDL version: http://pastebin.com/bKifVSgE
>
> C version: http://pastebin.com/T9Ujaxx1 http://pastebin.com/fLhpn6Jy
> http://pastebin.com/v8dxfwB0
>
> Make sure you have the GSL and FFTW libraries before trying to use
> the C version. Let me know if you have trouble getting either program
> to run.
>
> If you run the programs, you'll see that there is in fact a
> difference in the outputs like I described.

Just doing the uniformly distributed values, I get exactly the same
values. When I do the poisson values also, I haven't been able to get
the same values.

> Also I tried to configure mglib, and I got the following error:
> "Could NOT find IDL (missing: IDL_LIBRARY IDL_INCLUDE_DIR)"
>
> Is it because I have GDL and not IDL on my computer?

Definitely need IDL, not GDL, to use the C portions of mglib.

Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)
Research Mathematician
Tech-X Corporation

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[Message index]

		Generate Same Sequence of Random Numbers in IDL and C By: sweiss1993 on Mon, 21 July 2014 09:11
		Re: Generate Same Sequence of Random Numbers in IDL and C By: Michael Galloy on Mon, 21 July 2014 10:16
		Re: Generate Same Sequence of Random Numbers in IDL and C By: sweiss1993 on Tue, 22 July 2014 09:21
		Re: Generate Same Sequence of Random Numbers in IDL and C By: Michael Galloy on Tue, 22 July 2014 11:07
		Re: Generate Same Sequence of Random Numbers in IDL and C By: Michael Galloy on Tue, 22 July 2014 14:13
		Re: Generate Same Sequence of Random Numbers in IDL and C By: sweiss1993 on Wed, 23 July 2014 09:52
		Re: Generate Same Sequence of Random Numbers in IDL and C By: Michael Galloy on Wed, 23 July 2014 11:03
		Re: Generate Same Sequence of Random Numbers in IDL and C By: sweiss1993 on Wed, 23 July 2014 16:42
		Re: Generate Same Sequence of Random Numbers in IDL and C By: Michael Galloy on Thu, 24 July 2014 10:34

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