Rank: 2083 based on 66 downloads (last 30 days) and 3 files submitted
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Antoni J. Canós

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ITACA - Technical University of Valencia

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Files Posted by Antoni J. View all
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(last 30 days)
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16 Dec 2010 polyfit3 Fit polynomial to data, with new features as forced to zero coefficients and data weighting. Author: Antoni J. Canós approximation, interpolation, fitting, polynomial fitting, polyfit, coefficients 17 3
  • 4.0
4.0 | 3 ratings
05 May 2009 Single-variable linear level finding ("inverse" INTERP1): findX Estimates the XI values at which the dependent variables Y reach a specified level YI. Author: Antoni J. Canós interpolation, data exploration, mathematics, approximation, level crossing, find zeros 25 4
  • 4.5
4.5 | 4 ratings
13 Dec 2006 Screenshot Fast and Robust Self-Intersections Computes the self-intersections of a curve. Author: Antoni J. Canós self intersect inters... 24 5
  • 5.0
5.0 | 6 ratings
Comments and Ratings by Antoni J. View all
Updated File Comments Rating
05 Jul 2014 Estimatenoise Noise variance estimation from a signal vector or array Author: John D'Errico

Very nice. Thank you John!!

26 Jun 2014 kmeans clustering Fully vectorized kmeans algorithm. Fast yet simple (10 lines) Author: Mo Chen

The algorithm randomly fails, probably due to the random initialization.

For instance, the vector of 1D data X=[9.13,2.68,2.33,9.41] with k=2 is sometimes clustered (labeled) as [1 1 1 1], instead of the right values [1 2 2 1] or [2 1 1 2];

07 Jun 2013 Linear Regression with Errors in X and Y Calculates slope and intercept for linear regression of data with errors in X and Y. Author: Travis Wiens

13 May 2009 find_cross.m, version 2.1 Find and/or estimate level crossings using a combination of search and interpolation. Author: Phillip M. Feldman

Phillip, please have a look at findX.m (File ID: #23860).
http://www.mathworks.com/matlabcentral/fileexchange/23860

It is based on find_cross.m but with an optimized code, completely vectorized, without the restriction of column vectors and with some new features.

Comments and Ratings on Antoni J.'s Files View all
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28 Feb 2014 Single-variable linear level finding ("inverse" INTERP1): findX Estimates the XI values at which the dependent variables Y reach a specified level YI. Author: Antoni J. Canós Ana

Many thanks for this, this function works really well!

19 Feb 2014 Fast and Robust Self-Intersections Computes the self-intersections of a curve. Author: Antoni J. Canós Muyun

Mr. Canos,

It's an awesome program. But could you explain in what way is the following block of code useful, and why does it appear twice?

remove = isnan(sum(dxy1(i,:) + dxy2(j,:),2));
i(remove) = [];
j(remove) = [];

Thank you.

07 Jan 2014 Fast and Robust Self-Intersections Computes the self-intersections of a curve. Author: Antoni J. Canós Ilya

it would be helpful to show how to get the (all) values of "t", at which the intersections occur.

Namely, two values of the parameter "t" correspond to each self-intersection.

06 Jan 2014 Fast and Robust Self-Intersections Computes the self-intersections of a curve. Author: Antoni J. Canós Ilya

it would be helpful to show how to get the (all) values of "t", at which the intersections occur.

06 Aug 2013 Fast and Robust Self-Intersections Computes the self-intersections of a curve. Author: Antoni J. Canós Bazalar, David

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