Rank: 31 based on 736 downloads (last 30 days) and 43 files submitted

Bruno Luong

E-mail: b.luong@fogale.fr

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Files Posted by Bruno				View all 1 - 5 of 43
Updated	File	Tags	Downloads (last 30 days)	Comments	Rating
29 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array Author: Bruno Luong	min, sorting, max, partial sort, quicksort, selection	64	33	4.69231 4.7 \| 13 ratings
23 Apr 2013	Interval merging Merging intervals in the bracket form Author: Bruno Luong	interval, merging, timestamps, brackets	8	4	4.0 4.0 \| 1 rating
16 Apr 2013	Sparse matrix convolution Convolution of sparse matrices Author: Bruno Luong	sparse, convolution	9	0
01 Apr 2013	Voronoi Sphere Compute voronoi's diagram of points on the 2-sphere Author: Bruno Luong	voronoi, delaunay, sphere	10	0	5.0 5.0 \| 1 rating
18 Jul 2012	InplaceArray: a semi-pointer package for Matlab Manipulate (multi-dimensional) arrays in the in-place form Author: Bruno Luong	inplace, pointers, copyonwrite, data shared	7	9	5.0 5.0 \| 2 ratings

Comments and Ratings by Bruno		View all 1 - 5 of 128
Updated	File	Comments	Rating
30 Jun 2013	N-dimensional histogram Compute n-dimensional histogram Author: Bruno Luong	To Dave, see my comment in May 2009. This is how it supposes to work.
24 May 2013	CStr2String Fast concatenation of cell strings to a string as C-Mex Author: Jan Simon	MATLAB cell concatenation is extremely slow. Jan's FEX is a must for those who care about speed.
16 May 2013	FFT-based convolution Discrete convolution using FFT method Author: Bruno Luong	Petr, I just test with 2012a, the recommendation stands.
26 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array Author: Bruno Luong	Rui, The error is in line #544 (look at the error message). Try to replace the C++ comment style // in case the positive set is unordered by C comment style /* in case the positive set is unordered */
23 Apr 2013	Range intersection Mathematical intersection of range composed of a union of intervals Author: Xavier Xavier	Good coding, fast

Comments and Ratings on Bruno's Files			View all 1 - 5 of 248
Updated	File	Comment by	Comments	Rating
30 Jun 2013	N-dimensional histogram Compute n-dimensional histogram Author: Bruno Luong	Luong, Bruno	To Dave, see my comment in May 2009. This is how it supposes to work.
25 Jun 2013	N-dimensional histogram Compute n-dimensional histogram Author: Bruno Luong	DaveD	This is a very useful piece of code, but it returns extra dimensions if any of your points fall along an outer edge.
28 May 2013	Truncated Gaussian Generate a pseudo-random vector X drawn from the truncated Gaussian distribution Author: Bruno Luong	Alex	Dear Bruno, Thanks for sharing this. I noticed that your code uses numerical methods to estimate the effective mean and std of the truncated random variable. Closed-form expressions for these quantities are given by Barr & Sherrill (1999, American Statistician, 53, 357-361), "Mean and Variance of Truncated Normal Distributions." The PDF is available for download from JSTOR: http://www.jstor.org/stable/2686057 I cannot upload the PDF here but will be happy to email it to you if you don't have access to JSTOR. The closed-form solution for the effective variance depends on the ch2cdf function in the Statistics Toolbox. Another relevant paper is Babu & Mathew (2009, Statistics and Probability Letters, 79, 375-380) "Confidence intervals for limited moments and truncated moments in normal and lognormal moments." Thanks again for sharing. -- Alex Petrov http://alexpetrov.com
24 May 2013	Min/Max selection Search for k smallest or largest elements in the array Author: Bruno Luong	Xiong, Yuanjun	Great function!
21 May 2013	FFT-based convolution Discrete convolution using FFT method Author: Bruno Luong	Petr	Bruno, sorry, I forgot to mention that I used 2012b. Moreover, speed difference might depend on inputs and I'm lucky with the inputs I use?

Top Tags Applied by Bruno	1 - 5 of 191
array, geometry, matrix, linear algebra, permutation

Files Tagged by Bruno				View all 1 - 5 of 45
Updated	File	Tags	Downloads (last 30 days)	Comments	Rating
29 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array Author: Bruno Luong	min, sorting, max, partial sort, quicksort, selection	64	33	4.69231 4.7 \| 13 ratings
23 Apr 2013	Interval merging Merging intervals in the bracket form Author: Bruno Luong	interval, merging, timestamps, brackets	8	4	4.0 4.0 \| 1 rating
16 Apr 2013	Sparse matrix convolution Convolution of sparse matrices Author: Bruno Luong	sparse, convolution	9	0
01 Apr 2013	Voronoi Sphere Compute voronoi's diagram of points on the 2-sphere Author: Bruno Luong	voronoi, delaunay, sphere	10	0	5.0 5.0 \| 1 rating
18 Jul 2012	InplaceArray: a semi-pointer package for Matlab Manipulate (multi-dimensional) arrays in the in-place form Author: Bruno Luong	inplace, pointers, copyonwrite, data shared	7	9	5.0 5.0 \| 2 ratings

Currently Watching
Type	Description
File	Spline derivative
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Files Matching Bruno's Watch List				View all 1 - 5 of 20
Updated	File	Tags	Downloads (last 30 days)	Comments	Rating
29 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array Author: Bruno Luong	min, sorting, max, partial sort, quicksort, selection	64	33	4.69231 4.7 \| 13 ratings
16 Apr 2013	Sparse matrix convolution Convolution of sparse matrices Author: Bruno Luong	sparse, convolution	9	0
01 Apr 2013	Voronoi Sphere Compute voronoi's diagram of points on the 2-sphere Author: Bruno Luong	voronoi, delaunay, sphere	10	0	5.0 5.0 \| 1 rating
18 Oct 2011	Plot earth Plot earth in 3D Author: Bruno Luong	cubedsphere, earth, map, texture, graphic, sphere	46	2	4.75 4.8 \| 4 ratings
26 Aug 2011	Consecutive vector spliter Partition an input vector into smaller series of subvectors of consecutive elements Author: Bruno Luong	array, cell, split vectors	32	4	5.0 5.0 \| 8 ratings

Comments and Ratings Matching Bruno's Watch List			1-5 of 97
Date	File	Comment by	Comments	Rating
24 May 2013	Min/Max selection Search for k smallest or largest elements in the array	Yuanjun Xiong	Great function!	5
27 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array	Rui	Bruno, Sorry. I introduced a typo to your codes. When I replaced // by /, I forgot to add /. Now it is working!	Comment only
27 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array	Rui	Bruno, Thanks a lot! Now there's a new error on the last line... At first I thought, maybe there's a missing brace, however the I found that was not the case. The new code was working with matlab 32 bit build-in compiler, but not the LCC on linux. Rui ----------------------- minkmex.c: In function ?MinMaxResult?: minkmex.c:293: warning: incompatible implicit declaration of built-in function ?memset? minkmex.c: In function ?LocResult?: minkmex.c:322: warning: incompatible implicit declaration of built-in function ?memset? minkmex.c: In function ?mexFunction?: minkmex.c:580: error: expected declaration or statement at end of input mex: compile of ' "minkmex.c"' failed. ??? Error using ==> mex at 208 Unable to complete successfully. Error in ==> minmax_install at 46 mex(mexopts{:},'minkmex.c');	Comment only
26 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array	Bruno Luong	Rui, The error is in line #544 (look at the error message). Try to replace the C++ comment style // in case the positive set is unordered by C comment style /* in case the positive set is unordered */	Comment only
26 Apr 2013	Min/Max selection Search for k smallest or largest elements in the array	Rui	Hi Bruno, I like this function. I got a lot of fun with it on Windows, but when I switched to Linux server with GCC compiler, it did not work. The error was the same as jianbo posted two years ago. I tried to modify minkmex.c file as you suggested, (replace "memset((data+p0), 0, sizeof(double)nz)" with "memset((void)(data+p0), 0, sizeof(double)*nz)") but it did not work. I tired both matlab 2012a and 2010b on our server, but neither worked. Could you help me on it? Thanks in advance! -------------------- minkmex.c: In function ?MinMaxResult?: minkmex.c:293: warning: incompatible implicit declaration of built-in function ?memset? minkmex.c: In function ?LocResult?: minkmex.c:322: warning: incompatible implicit declaration of built-in function ?memset? minkmex.c: In function ?mexFunction?: minkmex.c:544: error: expected expression before ?/? token mex: compile of ' "minkmex.c"' failed. ??? Error using ==> mex at 208 Unable to complete successfully. Error in ==> minmax_install at 46 mex(mexopts{:},'minkmex.c');	5