Rank: 2342 based on 30 downloads (last 30 days) and 2 files submitted
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Files Posted by Trevor View all
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05 Jul 2012 tplay.m: artefact-free audio presentation despite Windows 7 Like 'sound' or 'wavplay', but uses ASIO for glitch-free sound presentation. Author: Trevor Agus sound, audio, wavplay, asio, windows 7 2 0
22 Jul 2011 Realtime audio input Realtime audio input, flexible and glitch-free. Author: Trevor Agus realtime, audio, signal processing 28 0
Comments and Ratings by Trevor View all
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25 Apr 2012 Mann-Whitney-Wilcoxon test Mann-Whitney-Wilcoxon non parametric test for two unpaired groups. Author: Giuseppe Cardillo

02 Mar 2011 SoundVolume - set or get the system speaker sound volume SoundVolume sets or gets the computer system's speaker sound volume, using Java Author: Yair Altman

14 Feb 2011 Fisherextest Fisher's Exact Probability Test. Author: Antonio Trujillo-Ortiz

Sorry, I've spotted a school-boy error in that second test -- the proportionSignicant were closer to p = 0.05 when I corrected it. I'd still be interested to be corrected on my first post. (And apologies for having a conversation with myself on the comments board.)
14 Feb 2011 Fisherextest Fisher's Exact Probability Test. Author: Antonio Trujillo-Ortiz

I've just tested this program with some random numbers, on the assumption that it should give significant (p<.05) results just on 1/20 of the trials. I get significant results on 1/3 of trials. Unless someone corrects me, I'm going to assume that this code does not do what it claims to do.

Here's my test code, in one ugly line:
counter=0; N=10000; for ii=1:N; [ppos,pneg,either]=Fisherextest(ceil(rand*20),ceil(rand*20),ceil(rand*20),ceil(rand*20)); if either<=.05; counter=counter+1; end; end; proportionSignificant=counter/N
14 Feb 2011 Fisherextest Fisher's Exact Probability Test. Author: Antonio Trujillo-Ortiz

Am I misunderstanding something, or is there a serious bug in the 1-tailed tests? The following two lines give the same outputs:
[ppos,pneg]=Fisherextest(1,10,10,1)
[ppos,pneg]=Fisherextest(10,1,1,10)
In fact, ppos seems to be always greater or equal to pneg, whereas it should be possible to have significant 1-sided results on both sides.
Top Tags Applied by Trevor
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audio, asio, realtime, signal processing, sound
Files Tagged by Trevor View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
05 Jul 2012 tplay.m: artefact-free audio presentation despite Windows 7 Like 'sound' or 'wavplay', but uses ASIO for glitch-free sound presentation. Author: Trevor Agus sound, audio, wavplay, asio, windows 7 2 0
22 Jul 2011 Realtime audio input Realtime audio input, flexible and glitch-free. Author: Trevor Agus realtime, audio, signal processing 28 0

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