Rank: 15 based on 1663 downloads (last 30 days) and 177 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
31.86272, -116.66781

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.)

Much of the m-functions presented here can be found cited at:
http://scholar.google.com/scholar?hl=es&q=Trujillo-Ortiz%2C+A.+and+R.+Hernandez-Walls&btnG=&lr=

You can find more updated information on:
http://scholar.google.com
and enter Trujillo-Ortiz, A. and R. Hernandez-Walls

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
16 Apr 2014 bootgmregresspi Bootstrap Interval Prediction of a Single Value for a Geometric Mean Regression (RMA). Author: Antonio Trujillo-Ortiz bootstrap, geometric mean regres..., linear regression, model ii, predicted interval, reduced major axis re... 9 0
16 Apr 2014 gmregresspi Interval Prediction of a Single Value for a Geometric Mean Regression-Reduced Major Axis Regression. Author: Antonio Trujillo-Ortiz predicted interval, geometric mean regres..., linear regression, model ii, reduced major axis re... 8 0
02 Apr 2014 gmregress Geometric Mean Regression (Reduced Major Axis Regression). Author: Antonio Trujillo-Ortiz linear regression, model ii, geometric mean regres..., reduced major axis re... 22 3
21 Mar 2014 gtlamtest G 't Lam's test for variance outliers. Author: Antonio Trujillo-Ortiz homogeneity of varian..., homoscedasticity, generalized cochran c..., anova, variance outliers tes..., generalized cochran c 15 0
20 Mar 2014 gtlaminv Inverse of the G 't Lam's one and two-sided cumulative distribution function (cdf). Author: Antonio Trujillo-Ortiz anova, homogeneity of varian..., cochran c, generalized cochran c, inverse value of cumu... 9 0
Comments and Ratings by Antonio View all
Updated File Comments Rating
29 Mar 2014 gmregress Geometric Mean Regression (Reduced Major Axis Regression). Author: Antonio Trujillo-Ortiz

The slope sign bug was efficiently corrected thanks to the valuable suggestions given by Holger Goerlitz and Joel E. Cohen. Yes, a negative slope are always negative!

Antonio Trujillo-Ortiz

21 Jan 2014 RMAOV1 Repeated measures single-factor analysis of variance test. Author: Antonio Trujillo-Ortiz

Hi Faith,
No. It does not support missing values.

30 Aug 2013 press Prediction error sum of squares. Author: Antonio Trujillo-Ortiz

annon. Yes, it is.

26 Aug 2013 press Prediction error sum of squares. Author: Antonio Trujillo-Ortiz

There were already done to this m-file the valuable suggestions done by Bart and John D'Errico. Thx

16 Aug 2013 press Prediction error sum of squares. Author: Antonio Trujillo-Ortiz

Hi John,

Thanks for your broad and useful mathematical fundament comment. I'll review the file script and take into account those in order to improve it.

Antonio Trujillo-Ortiz

Comments and Ratings on Antonio's Files View all
Updated File Comment by Comments Rating
04 Sep 2014 gstd Standard deviation of a grouped sample. Author: Antonio Trujillo-Ortiz Wajahat

Excellent. A very quick and tool to calculate the Std.Dev. of grouped data or histograms.
Its strange that Matlab Statistics Toolbox does not include a function for this. Or at least I could not find one.

22 Jul 2014 gmode Mode(s) of a grouped sample. Author: Antonio Trujillo-Ortiz medalle, eduardo

Check out for your new collection.

21 May 2014 welchanova Welch ANOVA Test for Unequal Variances. Author: Antonio Trujillo-Ortiz gargouri

Hello
I had used your code of Levene test :)
and I found that samples have not an homogenious variance so I can not use ANOVA.
So I would like to know instead of ANOVA if we can use Welch ANOVA since the distribution not normal?
Thank you

21 May 2014 Levenetest Levene's test for homogeneity of variances. Author: Antonio Trujillo-Ortiz gargouri

08 May 2014 AnDarksamtest Anderson-Darling k-sample procedure to test whether k sampled populations are identical. Author: Antonio Trujillo-Ortiz Jon

I retract my silly question.

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