Rank: 755 based on 92 downloads (last 30 days) and 2 files submitted
photo

Ahmed Ben Saïda

E-mail
Company/University
Faculté des Sciences Economiques et de Gestion

Personal Profile:
Professional Interests:

 

Watch this Author's files

 

Files Posted by Ahmed View all
  • 1 - 2 of
  • 2
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
17 Feb 2009 Chaos test A test for chaotic dynamics of a noisy time series based on the Lyapunov exponent. Author: Ahmed Ben Saïda chaos, bifurcation, lyapunov exponent, time series 28 0
14 Dec 2007 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda pro, normality test, hypothesis test, probability, composite, algorithm 64 9
  • 4.85714
4.9 | 8 ratings
Comments and Ratings on Ahmed's Files View all
  • 1 - 5 of
  • 11
Updated File Comment by Comments Rating
14 Jun 2011 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda rui

i am unable to test the code with my data, and i don't know why.
21 Dec 2010 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda Luis, Ricardo

I tested this code but I have a doubt. In line 119, the kurtosis computation seems to be for a population (kurtosis(x)) and not for a sample (kurtosis(x,0)). So, in line 119 shouldn't it be "if kurtosis(x,0)> 3" (flag=0)?
Thanks.
26 Aug 2010 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda pav, steven

I tested this code for sample sizes as small as 4, and as large as 4096. at all levels tested, the p-values were fairly uniform. Thus it appears this test maintains the nominal rejection rate very well. (the Anderson-Darling test has similarly good performance for small sample sizes.)
23 Feb 2010 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda Lou, Jared

Has anyone Tried to Validate this other than LARS?
10 Feb 2009 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda Raghav
Top Tags Applied by Ahmed
  • 1 - 5 of
  • 12
algorithm, bifurcation, chaos, composite, hypothesis test
Files Tagged by Ahmed View all
  • 1 - 3 of
  • 3
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
24 Jul 2009 Intersect several arrays Uses Matlab standard intersect function recursively to return the intersection of several arrays. Author: Julia intersect, intersection, matrix, common 7 1
17 Feb 2009 Chaos test A test for chaotic dynamics of a noisy time series based on the Lyapunov exponent. Author: Ahmed Ben Saïda chaos, bifurcation, lyapunov exponent, time series 28 0
14 Dec 2007 Shapiro-Wilk and Shapiro-Francia normality tests. Shapiro-Wilk & Shapiro-Francia parametric hypothesis test of composite normality. Author: Ahmed Ben Saïda pro, normality test, hypothesis test, probability, composite, algorithm 64 9
  • 4.85714
4.9 | 8 ratings

Contact us at files@mathworks.com