Matlab

Create Sparse Matrix Mex file
Hi, I need help to resolve a problem. I do a code in C that I use as mex and I want create a sparse matrix and this is must return in matlab. I have 3 vectors: - row vector - column vector - value vector Now I return this 3 vectors and in matlab I use command "sparse" to create the matrix. But as you can unders... 3 Aug 2010 14:44

Detectind the Periodin and aperiodic componenet in speech
hello everyone...can anyone suggest me how to detect the periodic and aperiodin component in a speech.....can anyone help me with a code..?? ... 1 Aug 2010 09:24

question!!!
I don't know how to generate data set in this situation.. xi=Z1+e, Z1∼N.(0, 1), i=1, . . . ,15, e~ N(.0, 1), e is independent identically distributed, xi~iid N(0,1) i=16, : : : , 40 we simulated 50 data sets consisting of 50/50/400 observations and 40 predictors. We chose β=(3,3,3,3,3,3,3,3,3,3,3,3... 1 Aug 2010 04:04

character to binary
hi, does anyone know how to convert characters into binary and back? I can easily do this with real numbers, but can't sort it out with characters. cheers, Alex ... 1 Aug 2010 20:16

An exact 1-D integration challenge - 66 - (sqrt, sin)
Hello, int(sqrt(1 - sin(z)^3)/cos(z), z= 0..Pi/2); ? Cheers, Vladimir Bondarenko Co-founder, CEO, Mathematical Director http://www.cybertester.com/ Cyber Tester Ltd. ---------------------------------------------------------------- "We must understand that technologies like ... 1 Aug 2010 01:55

max and min of multiple cell arrays
hello guys, Below is my code. the variable 'fv' in the code outputs 2 cell arrays. I would like to find the max and min of each of the arrays. Help me if you can guys. thanks dale %%%%%%%%%%%%%%%%%%%%%%%%%%%% clc; clear all; Rs1 = [ 0 0 0 0 0 0 0 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0... 1 Aug 2010 11:34

convert periodogram PSD estimation to signal amplitude
Hi guys, I've a signal consists of a frequency 3/32 Hz, sampled at 1 time per second (1 Hz). Since the signal amplitude is 1 volt, I am expecting the signal power is 0.5 v^2. Although I can obtain the frequency estimation perfectly, I don't know how to convert Periodogram PSD to the signal amplitude. If a... 5 Aug 2010 01:35

Creating a function
Hi, Im trying to turn my script into a function today, but i dont seem to understand how to do it. function T = trajectory(V,p,angle) % %documentation <my script here> % % end That is my understanding of how to create a function. When I do that however I cannot recall on "trajectory" as a function ... 1 Aug 2010 00:51

Is Matlab overkill for this financial need?
Hello Matlab folks, I have a question and the answer may be be so glaringly obvious that I feel the need to apologize ahead of time if indeed it is. I am a Perl/Python person by training and have never used Matlab (although it does intrigue me) I am working on a project to analyze stock purchases. That is to say... ... 31 Jul 2010 20:32

Beginner_question_storing all for loop outputs into a matrix
On Aug 1, 10:16 am, "dale " <persa...(a)gmail.com> wrote: guys, all i am trying to ask is a basic way to kind of concatentate my matrix each time the for loop iterates. it's urgent .any suggestion welcome thanks dale First of all, don't panic! Your code appears to be working correctly, bu... 31 Jul 2010 19:27