Rank: 728 based on 106 downloads (last 30 days) and 8 files submitted

Matthew Roughan

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Company/University: University of Adelaide
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Files Posted by Matthew					View all 1 - 5 of 8
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
05 Apr 2011		Reuleaux triangle and friends A Reuleaux triangle is a shape of constant width based on an equilateral triangle. Author: Matthew Roughan	geometry, polygon, reuleaux	4	0
04 Apr 2011		rand_gamma Generates Gamma randomc variables. Author: Matthew Roughan	random, statistics, simulation	4	0
09 Mar 2011		surf2solid Conversion routines to take a surface and convert this into a solid. Author: Matthew Roughan	stl, 3d printer, data export	10	0
28 Oct 2009		gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	estimation, em, expectation maximizat..., mixture model, gaussian, statistics	46	5	4.25 4.2 \| 4 ratings
02 Aug 2009		randp.m Generate Pareto random variables. Author: Matthew Roughan	statistics, random number, pareto, random number generat..., distribution, heavy tail	14	0

Comments and Ratings on Matthew's Files			View all 1 - 5 of 7
Updated	File	Comment by	Comments	Rating
23 Jan 2012	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	Schachter, Jonathan	There's a "path" variable in gaussian)mixture_model.m that's hardwired to one of your local directories. Commenting it out made the script run.
25 Oct 2011	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	Conover, Kent	This function does not fit the parameters by maximizing EM, the log sum likelihood. Instead, the search is terminated when the parameter estimates are stable. As a result the fits can be poor.
31 Oct 2010	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	Scott	Great M-file - thanks so much for this contribution - it works well for my application.
05 Oct 2010	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	Avi	EXCELLENT !!!
01 Jun 2010	crosshatch_poly crosshatch_poly fills a polygon with slanted lines at a specified angle and separation. Author: Matthew Roughan	Wozabal, David	This seems to be a very nice function in principle. However, I noticed that it stops working if the axis are on a different scale (in particular the angle of the hatching is always 90°, independent of the respective parameter). EXAMPLE (modified from crosshatch_poly_test.m) -------------------------------------------------------------------- x = 2 + [0 3 3 0]; y = 1 + [0 0 3 3]; %%%% SIMPLE EXAMPLE figure(1) [h,g] = crosshatch_poly(x1000, y, 30, 0.251000, ... 'edgestyle', '-', 'edgecolor', 'b', 'edgewidth', 2, ... 'linestyle', '--', 'linecolor', 'r', 'linewidth', 1); set(gca, 'xlim', [0 7*1000]); set(gca, 'ylim', [0 7]); axis square -----------------------------------------------------------------------------

Top Tags Applied by Matthew	1 - 5 of 36
statistics, estimation, graphics, hatch, hatching

Files Tagged by Matthew					View all 1 - 5 of 8
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
05 Apr 2011		Reuleaux triangle and friends A Reuleaux triangle is a shape of constant width based on an equilateral triangle. Author: Matthew Roughan	geometry, polygon, reuleaux	4	0
04 Apr 2011		rand_gamma Generates Gamma randomc variables. Author: Matthew Roughan	random, statistics, simulation	4	0
09 Mar 2011		surf2solid Conversion routines to take a surface and convert this into a solid. Author: Matthew Roughan	stl, 3d printer, data export	10	0
28 Oct 2009		gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	estimation, em, expectation maximizat..., mixture model, gaussian, statistics	46	5	4.25 4.2 \| 4 ratings
02 Aug 2009		randp.m Generate Pareto random variables. Author: Matthew Roughan	statistics, random number, pareto, random number generat..., distribution, heavy tail	14	0

Currently Watching
Type	Description
File	crosshatch_poly
File	plot_feasible.m
File	IPF
File	gaussian_mixture_model.m
File	surf2solid
File	Reuleaux triangle and friends
File	rand_gamma

Files Matching Matthew's Watch List					View all 1 - 5 of 7
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
05 Apr 2011		Reuleaux triangle and friends A Reuleaux triangle is a shape of constant width based on an equilateral triangle. Author: Matthew Roughan	geometry, polygon, reuleaux	4	0
04 Apr 2011		rand_gamma Generates Gamma randomc variables. Author: Matthew Roughan	random, statistics, simulation	4	0
09 Mar 2011		surf2solid Conversion routines to take a surface and convert this into a solid. Author: Matthew Roughan	stl, 3d printer, data export	10	0
28 Oct 2009		gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm. Author: Matthew Roughan	estimation, em, expectation maximizat..., mixture model, gaussian, statistics	46	5	4.25 4.2 \| 4 ratings
23 Jul 2009		IPF Performs a simple Iterated Proportional Fit (IPF). Author: Matthew Roughan	statistics, traffic matrices, fitting matrices, estimation	6	0

Comments and Ratings Matching Matthew's Watch List			1-5 of 7
Date	File	Comment by	Comments	Rating
23 Jan 2012	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm.	Jonathan Schachter	There's a "path" variable in gaussian)mixture_model.m that's hardwired to one of your local directories. Commenting it out made the script run.	Comment only
25 Oct 2011	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm.	Kent Conover	This function does not fit the parameters by maximizing EM, the log sum likelihood. Instead, the search is terminated when the parameter estimates are stable. As a result the fits can be poor.	2
31 Oct 2010	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm.	Scott	Great M-file - thanks so much for this contribution - it works well for my application.	5
05 Oct 2010	gaussian_mixture_model.m Estimate the parameters of a 1D Gaussian Mixture Model using the EM algorithm.	Avi	EXCELLENT !!!	5
01 Jun 2010	crosshatch_poly crosshatch_poly fills a polygon with slanted lines at a specified angle and separation.	David Wozabal	This seems to be a very nice function in principle. However, I noticed that it stops working if the axis are on a different scale (in particular the angle of the hatching is always 90°, independent of the respective parameter). EXAMPLE (modified from crosshatch_poly_test.m) -------------------------------------------------------------------- x = 2 + [0 3 3 0]; y = 1 + [0 0 3 3]; %%%% SIMPLE EXAMPLE figure(1) [h,g] = crosshatch_poly(x1000, y, 30, 0.251000, ... 'edgestyle', '-', 'edgecolor', 'b', 'edgewidth', 2, ... 'linestyle', '--', 'linecolor', 'r', 'linewidth', 1); set(gca, 'xlim', [0 7*1000]); set(gca, 'ylim', [0 7]); axis square -----------------------------------------------------------------------------	2

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