Rank: 1003 based on 107 downloads (last 30 days) and 2 files submitted
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Salman Rogers

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Files Posted by Salman View all
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12 Feb 2007 Published M-Files 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers weighted, 2d, probability, statistics, polynomial, fitting evaluation 75 5
  • 4.83333
4.8 | 6 ratings
02 Jan 2007 polyfitweighted Simple function to calculate a polynomial best fit of 1D data Y with array of weights W (which must Author: Salman Rogers fit, best, optimization, polymonial, weights, weighted 32 4
  • 1.0
1.0 | 1 rating
Comments and Ratings on Salman's Files View all
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19 Aug 2009 polyfitweighted Simple function to calculate a polynomial best fit of 1D data Y with array of weights W (which must Author: Salman Rogers Matt

In the help comments for polyfitweighted2, it says that Z and W should be of size [length(X) length(Y)]

However, throughout the code (both polyfitweighted2 and polyval2, Z and W are treated as though of size
 [length(Y) length(X)].

04 Aug 2009 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers E, K

Very useful. Matlab should build it in.
25 Jun 2009 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers Kruse, Ryan

This is great! Thanks!

I made a slight modification to deal with NaN values. I changed this:
x = x(:);
y = y(:);
z = z(:);
w = w(:);

to this:
x = x(~isnan(z));
y = y(~isnan(z));
z = z(~isnan(z));
w = w(~isnan(z));
16 Jun 2009 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers Rubshtein, Andrey

Dear Salman, first of all thank you for your submission.
Nevertheless, I have a minor remark - In many applications (x,y,z) triples are not necessarily measured on a grid. For example: I have:
(1,1,10), (1,2,5) , (2,1,7) , but i have no clue what is the value of z at (2,2).
12 Dec 2007 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers Liu, Feng

Good work!
Top Tags Applied by Salman
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best, fit, leastsquares, optimization, polymonial
Files Tagged by Salman View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
12 Feb 2007 Published M-Files 2D Weighted Polynomial Fitting and Evaluation Two scripts: polyfitweighted2 fits 2D data with weights, and polyval2 evaluates the 2D polynomial Author: Salman Rogers weighted, 2d, probability, statistics, polynomial, fitting evaluation 75 5
  • 4.83333
4.8 | 6 ratings
02 Jan 2007 polyfitweighted Simple function to calculate a polynomial best fit of 1D data Y with array of weights W (which must Author: Salman Rogers fit, best, optimization, polymonial, weights, weighted 32 4
  • 1.0
1.0 | 1 rating
 

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