Matlab

Locking memory in Matlab MEX function
G'day, We are developing some multichannel audio software here in the Sydney Uni using C++. Our code interacts with Matlab through a MEX file that is just a wrapper function calling our dll's. The MEX file receives a Matlab matrix with audio data, passes a pointer to an appropriate function from the dll and returns... 18 Jun 2010 09:07

sampling and lag
I have two sets of data from an event. A was sampled at 1KHz while B was sampled at 400Hz. I want to create C which is A sampled at 400Hz. How do utilize B to help create C so that B and C correlate as closely as possible? I need to overlay B and C visually and compute % error at each sample point. Guys I'm try... 17 Jun 2010 23:22

export figure to PDF/EPS messes colors
When I export a figure to PDF or EPS the resulting file has all the colors messed up like this: http://imgur.com/FNib4 If I export it in PNG it looks as it should: http://imgur.com/7P9dJ Is this some bug in MATLAB's export function? I also tried the export_fig.m alternative but I get the same problems. Thanks... 18 Jun 2010 04:47

HELP! ! Send data to remote machine using TCP/IP or UDP
Hey, I am trying to make a simple simulink model for testing purpose and if it works then use it in a project. I need to send data to remote machine but on the same gateway (192.168.1.1, I am using a router). I tried to send data on the same machine say 192.168.1.101:30000 and receive on the same machine with the sa... 23 Jun 2010 15:04

Ga optimization code needs to correct
I am a new matlab learner, and these matlab codes may not in good order, but it can run. However, there are some questions (in (((((()))))) I can not work out. Please help me for that. herein after is the assignment and my code: Use Ga to solve one-max problem, and the GA must have these parameters: Representation:... 18 Jun 2010 06:57

Issue with Accessor methods
Hello all, I'm trying to place my code into a class, but I'm not exactly sure how to go about it. the class below is what I currently have. I execute the following in the command window: a = ScriptClass(1); a.setEvent(1); This gives me an error "Too many input arguments", after the second command. Does anyone... 18 Jun 2010 08:02

header for fortran dll to be called from matlab
Dear all, I am trying to call a DLL file from Matlab. I guess the DLL was created by FORTRAN and I don't have header file for this DLL file. Does anybody know how to write a header file for it? In the help document of the program, there are ways calling it from VB6 and Fortan90. The information is followed: VB De... 21 Jun 2010 13:33

discrete trasnfer function calculations discrepance
hello I am trying to use a LTI system for represent a linear sistem with this structure Q(t)=(0.1773 / (1-0.824z^-1))*I(t) time step 1hr I try with filt([0.1773],[1 -0.824],1) and works but the problem is that I also made some verification in excel and I dont have the same results, Can you tell me if I ... 17 Jun 2010 20:05

hazard rate shape
Hi there, I have a density (generalized gamma) and the associated survival function and I would like to know for which values of the density's parameters the hazard rate (f(x)/S(x)) is increasing. decreasing, arc shaped or U-shaped. I have one example for each shape in the code below. The hazard rate can only tak... 17 Jun 2010 20:05

Legendre coefficients
Is this what you are after? This is almost a direct translation from Numerical Recipes. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function [x, w] = Gauss_points(n) % Generates the abscissa and weights for a Gauss-Legendre quadrature. % Reference: Numerical Recipes in Fortran 77, Cornell press. x = zeros(n,1); ... 17 Jun 2010 18:59