Rank: 44 based on 777 downloads (last 30 days) and 154 files submitted
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Antonio Trujillo-Ortiz

E-mail
Company/University
Facultad de Ciencias Marinas, Universidad Autonoma de Baja California, Mexico.
Lat/Long
31.86272048950195, -116.6678085327148

Personal Profile:

Professor Antonio Trujillo-Ortiz is an oceanographer. He has a PhD and has worked extensively at Facultad de Ciencias Marinas as a senior lecturer on courses of Statistics, Advanced Statistics, Multivariate Statistics, and Linear Algebra. It would appreciate to receive copies of the work published that utilize or they cite any of the functions below. FEX contributor since
2002-11-12.
          (Please, rate my files.)

Professional Interests:
Oceanography, Statistics, Mathematics, Marilyn Monroe, Titanic. Offering also courses and statistical consulting services anywhere of the world.

 

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Files Posted by Antonio View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
01 Dec 2011 mbbtest Multivariate Bootstrap Bartlett´s Test for the Homogeneity of Covariance Matrices. Author: Antonio Trujillo-Ortiz bartlett, homogeinity of covari..., bootstrap, homoscedasticity, resampling 4 0
30 Nov 2011 bootbtest Bootstrap Bartlett's Test for Homogeneity of Variances. Author: Antonio Trujillo-Ortiz bartlett, bootstrap, homogeinity of varian..., homoscedasticity, resampling 6 0
18 Nov 2011 bbtest Boos and Brownie's Test for Homogeneity of Variances. Author: Antonio Trujillo-Ortiz boosbrownie test, homogeinity of varian..., homoscedasticity, boos and brownie test 5 0
20 Sep 2011 fractrimmean Fractional trimmed mean. Author: Antonio Trujillo-Ortiz trimmed mean, truncated mean, trimming, fractional trimmed me... 3 0
24 Aug 2011 boothomvart Bootstrap Homogeneity of Variances Test T Analytical Approach. Author: Antonio Trujillo-Ortiz bootstrap, homogeinity of varian..., homoscedasticity, resampling 3 0
Comments and Ratings by Antonio View all
Updated File Comments Rating
23 Jul 2009 HZmvntest Henze-Zirkler's Multivariate Normality Test. Author: Antonio Trujillo-Ortiz

Dear Michael,
Thanks for your interest of this m-file. As you know, we only generated the Matlab computational algorithm from the original published paper. If you have any mathematical or statistical fundamentals inquiry you must refer to the author(s). I give you the Dr. Norbert Henze's email address
henze@stoch.uni-karlsruhe.de
and/or
N.Henze@math.uni-karlsruhe.de

However, we don't need the lognormal cdf (logncdf) neither the mean and variance of the lognormal distribution (longnstat) functions. For the used mean (mu) and variance (si2), which are the Henze-Zirkler mean and variance, must, as the author establish, to be converted to the lognormal Henze-Zirkler mean and variance. As you can see, using the provied Iris data example. The mean(mu)=0.7635 and variance(si2)=0.0112. With a Henze-Zirkler lognormal mean: -0.279408 and Henze-Zirkler lognormal variance: 0.1379069. But, if you try to use te mu and si2 values by the longnstat function, you get the incorrect lognormal values of 2.1459 and 5.7768e-004, respecively.

Yours,

Prof. Antonio Trujillo-Ortiz

23 Jun 2009 outaovii Identification of outliers in a one-way analysis of variance model II (random effects). Author: Antonio Trujillo-Ortiz

Hi zapp,

I think your rate is so rigourous, and twice (only one should be fine)...!!!

Recall that I'm not the author of the statistical procedure, but only of the Matlab function. So, I suggest you could contact the authors and statistically establish your point of views. Also it could be better you publish your deep statistical rejection.

Finally, are you sure what the procedure statistically does?

Yours,

Antonio Trujillo-Ortiz

31 Jan 2009 latgsqr Analysis of variance by a latin or graeco-latin square design with or without replicates. Author: Antonio Trujillo-Ortiz

We thank Alex Karandreas from the Department of Acoustics, Aalborg University, Denmark, for encourage us to include a graeco-latin example. This has been done.

Antonio Trujillo-Ortiz

10 Jan 2009 HZmvntest Henze-Zirkler's Multivariate Normality Test. Author: Antonio Trujillo-Ortiz

Dear Johan,

Your valuable comment (15-12-08)for this m-file runs much faster was taken into account. We thank you.
Antonio

05 Jan 2009 Indicator matrix generation from survey questions. indicator matrix, multiple correspondence analysis, crosstabulation analysis, categorical analysis. Author: Antonio Trujillo-Ortiz

Dear Jos. Thanks for your valuable comments for improve this m-file script. They were taken into account.

Comments and Ratings on Antonio's Files View all
Updated File Comment by Comments Rating
16 May 2012 RMAOV33 Three-way Analysis of Variance With Repeated Measures on Three Factors Test. Author: Antonio Trujillo-Ortiz Faber, Gert

Oops, I made a mistake, I get the same results now

16 May 2012 RMAOV33 Three-way Analysis of Variance With Repeated Measures on Three Factors Test. Author: Antonio Trujillo-Ortiz Faber, Gert

And looking at my plots, results of SPSS seem to make more sense.

21 Apr 2012 maov2 Computes a two-way Multivariate Analysis of Variance for equal or unequal sample sizes. Author: Antonio Trujillo-Ortiz ÇANKAYA, Mehmet Niyazi

Dear Prof. Trujillo-Ortiz

When I run the maov2, I received an error message given below:
Error in ==> maov2 at 160
PA = [];PB = [];PAB = [];PPA = [];PPB = [];PPAB = [];PLHA = [];PLHB = [];
??? Output argument "MAOV2" (and maybe others) not assigned during call to
"final\maov2.m>maov2".

What should I do to solve this problem?
Yours sincerely

11 Apr 2012 RAFisher2cda Canonical Discriminant Analysis is a dimension-reduction technique related to PCA and CCA. Author: Antonio Trujillo-Ortiz williams
19 Mar 2012 DorHanomunortest Doornik-Hansen Omnibus Multivariate (Univariate) Normality Test. Author: Antonio Trujillo-Ortiz Rachel

What is the Asymptotic Test, please? Is it the Bowman and Shenton (1975) test? Thank you.

Top Tags Applied by Antonio
probability, statistics, multivariate, repeated measures, analysis of variance
Files Tagged by Antonio View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
01 Dec 2011 mbbtest Multivariate Bootstrap Bartlett´s Test for the Homogeneity of Covariance Matrices. Author: Antonio Trujillo-Ortiz bartlett, homogeinity of covari..., bootstrap, homoscedasticity, resampling 4 0
30 Nov 2011 bootbtest Bootstrap Bartlett's Test for Homogeneity of Variances. Author: Antonio Trujillo-Ortiz bartlett, bootstrap, homogeinity of varian..., homoscedasticity, resampling 6 0
18 Nov 2011 bbtest Boos and Brownie's Test for Homogeneity of Variances. Author: Antonio Trujillo-Ortiz boosbrownie test, homogeinity of varian..., homoscedasticity, boos and brownie test 5 0
20 Sep 2011 fractrimmean Fractional trimmed mean. Author: Antonio Trujillo-Ortiz trimmed mean, truncated mean, trimming, fractional trimmed me... 3 0
24 Aug 2011 boothomvart Bootstrap Homogeneity of Variances Test T Analytical Approach. Author: Antonio Trujillo-Ortiz bootstrap, homogeinity of varian..., homoscedasticity, resampling 3 0

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