Matlab

kmeans
Hi , I try to cluster my data which has dimensions (532,3). I have to use k means algorithm. In general, my problem is an assignment problem. I try to assign my clusters to 4 different modes. I started with k=4. So it is not difficult to look at each assignment possibility since it is just 4^4. Now I have to increa... 31 May 2010 06:30

removing gamma correction from a PNG image
Hello, I simplified my previous query. Could any one help me to make gamma,RenderingIntent,Chromaticities values empty or zero.Or atleast is it possible to remove the gamma correction.Please tell me any one. Actual values are as follow,I obtained them using imfinfo() function RenderingIntent: 'perceptua... 31 May 2010 09:45

BER Display Rayleigh Multipath Channel in Simulink
"Lance " <whiteninja(a)gmail.com> wrote in message <gr5ug5$5k7$1(a)fred.mathworks.com>... Idin Motedayen-Aval <run.signature(a)MATLAB.for.email> wrote in message <gr5s1q$nod$1(a)fred.mathworks.com>... Lance wrote: I'm trying to simulate a concatenated code communication system with BPSK modulation over a Rayleig... 31 May 2010 05:26

Batch of experiments
Hello, I want to run some experiments and get some statistics. I already have my program in matlab but I would like to store the results from every simulation (in a file with a singular name that helps me identify to which simulation parameters it corresponds to) and finally gather all the simulation results in grap... 31 May 2010 05:26

fclose() command slow when closing big files?
Hi, I am using a matlab script for data acquisition from an instrument. I open a .txt file w_file = fopen(['C:\log\',fileName],'a'); and save the data to the file using a while-loop and fprintf(w_file,my_data); This works fine, and I can see the .txt file growing with time. When I want to end the script... 3 Jun 2010 11:07

error in my program
??? Error using ==> sym.subs>flatten at 224 Number of elements in NEW must match number in OLD Error in ==> sym.subs at 146 [X,Y] = flatten(X,Y); Error in ==> networkadjustment at 185 L0(i)=subs(L01,[a b c d ],[FX(i,1) FY(i,1) TX(i,1) TY(i,1)]); What is this error for ? I can not run my program an... 31 May 2010 10:51

How to make two images as the same in their characteristics
Hello, I have two images of the same type(PNG).I need to make them same interms of their gamma values and the characteristics I mentioned below. I used imfinfo() function two see their details. Say, my two images are img1 and img2.Both img1 and img2 are differed in the following properties. =>img1 ... 31 May 2010 09:45

Performance Windows vs Linux
Hi, I have been running a large code in matlab 7.5 (R2007b) on Windows XP SP3 32b on my laptop Intel Duo T9400 @2.53Ghz, 3.48Gb RAM. Only one core has been used (multi-core option has been disabled). I recently ran the same code on a machine with 2 Xeon @2.4Ghz 64b Processors and 24Gb RAM, Linux Ubuntu and Matlab 2010... 31 May 2010 01:09

mmreader codec problems
Hi! I'm working on frame by frame analyzing problems using mmreader. I noticed a big difference in speed between avi and wmv formats. What is the best video format to get the best speed with mmreader? Sometimes mmreader even freezes my pc when I try to read in wmv formats. Why is that? When I did a completely new... 31 May 2010 00:05

Radibutton set error
I've read through a lot of posts regarding setting the values of the radio button (and really any buttons) and coded accordingly but get an error when trying to do so and was wondering if anyone could point out what was wrong. I have 4 radio buttons and when one is selected, I want to disable the others this is ... 31 May 2010 01:09