Rank: 21157 based on 0 downloads (last 30 days) and 0 files submitted

Greg Fricke

E-mail: Contact Author

Personal Profile:
Professional Interests:: Mechanical Engineering, Controls, Robotics

Watch this Author's files

Files
Watch Lists

Comments and Ratings by Greg		View all 1 - 3 of 3
Updated	File	Comments	Rating
17 Feb 2010	Optitrack SDK interface demo Demonstration file on how to interface directly with Natural Points USB cameras (TrackIR or FLEX) Author: Glen Lichtwark	Sorry for the earlier post. I realized that I was running an older version of MATLAB (7.1). I have now installed the latest release (2009b) and your function appears to work. Thanks again for these helpful tools!
17 Feb 2010	Optitrack SDK interface demo Demonstration file on how to interface directly with Natural Points USB cameras (TrackIR or FLEX) Author: Glen Lichtwark	Thank you for these good demos, Glen! I found you via the NaturalPoint help forum. I have downloaded both this package and TT_Tools_demo, hoping to get a developmental "leg up". I encountered a problem right off the bat with this file. I am using V100R2:FLEX cameras. Currently I have only one camera attached (and no hub). When I attempt to run this function, I receive the following output: Device Arrived Device Arrived Number of cameras = 2 ??? Error using ==> registerevent Input must be a scalar handle. Error in ==> optitrack_data at 31 registerevent(h2,@frame_events); The function reports 2 cameras because I have a Hardware Key (for the TT software license) installed; when I remove the key, the camera count drops to 1 but the error is the same. Any thoughts, or is this simply a problem with V100R2:FLEX cameras (as opposed to the TrackIR4 for which you developed this code)? Thanks!
21 Feb 2009	Functions for the rectangular assignment problem This package provides m- and mex-functions for solving the rectangular assignment problem. Author: Markus Buehren	Thank you Markus! This has helped me pass a critical practicality hurdle in my Master's Research without spending a week or two reading, writing, and debugging!

Currently Watching
Type	Description
File	Functions for the rectangular assignment problem
File	Hungarian Algorithm for Linear Assignment Problems (V2.3)
File	Circular Statistics Toolbox (Directional Statistics)

Files Matching Greg's Watch List					View all 1 - 3 of 3
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
15 Sep 2011		Hungarian Algorithm for Linear Assignment Problems (V2.3) An extremely fast implementation of the Hungarian algorithm on a native Matlab code. Author: Yi Cao	optimization, munkres algorithm, hungarian algorithm, assignment problem, function missing in y..., bsxfunminus	63	21	5.0 5.0 \| 9 ratings
04 Jul 2011		Functions for the rectangular assignment problem This package provides m- and mex-functions for solving the rectangular assignment problem. Author: Markus Buehren	hungarian algorithm, munkres algorithm, optimization, assignment problem	78	20	4.7619 4.8 \| 22 ratings
19 Apr 2011		Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data. Author: Philipp Berens	directional statistic..., ang, circle, circular statistics, circular, statistics	196	47	4.36842 4.4 \| 20 ratings

Comments and Ratings Matching Greg's Watch List			1-5 of 98
Date	File	Comment by	Comments	Rating
11 Jan 2012	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Luke	Great tool. I do have to say that circ_mtest is a bit weird. The input is [pval, z] but output is set as [h,mu,ul,ll]	Comment only
08 Dec 2011	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Balazs Barkoczi	Thanks for this excellent toolbox! I have only some problems with the example files, that I downloaded from http://www.jstatsoft.org/v31/i10 example1: ??? Undefined function or method 'parseVarArgs', therefore the figure 2 isn't complete, and it hasn't axis labels. example2: ??? Error using ==> mtimes Inner matrix dimensions must agree. Error in ==> example2 at 42 zm = rexp(iphi); Perhaps a dot is absent, but after this modification zm = r.exp(iphi); the same error occurs: ??? Undefined function or method 'parseVarArgs' Can somebody help me to fix this problems? Thank you very much!	4
11 Nov 2011	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Fuh-Cherng	@Christopher: Thank you so much for your kindness and help. I really appreciate it.	Comment only
09 Nov 2011	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Christopher	@Fuh: indeed it should and when I step carefully through the function, sometimes the result comes out correct and sometimes it doesn't, somewhat dependent on the numbers in alpha. To fix the problem go to lines 45 and 46 of circ_median (ver 2011f). You see two inequalities, dd>=0 and dd<0. The two inequalities should be identical for consistency and the correct result. Edit line 46 to read: m2 = sum(dd<=0,1); Now the function seems to behave as expected.	Comment only
09 Nov 2011	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Fuh-Cherng	I am new in circular statistics, so don't laugh at me... But I do have a question about the circ_median() function. Say I have a data set that contains six angles [0.1 0.2 0.3 0.4 0.5 0.6]. when I feed these data into circ_median(), the function returns a median = 0.4 I thought that, when a data set contains an even number of observations, the median would be calculated as the average of the middle two numbers (i.e., (0.3+0.4)/2 = 0.35). My code is listed below. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% alpha = [0.1 0.2 0.3 0.4 0.5 0.6]'; med = circ_median(alpha) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Can anyone help me with this? Sincerely, Fuh	Comment only

Contact us at files@mathworks.com