Matlab

Taking a date/time out of Excel or text file
I have a number of text files with: date-time p11 p12 .. p1n etc where pij are numeric values date-time p21 p22 .. p2n and date-time format is, e.g. "2003-01-01T00:00" I converted the file to .xls (from within Excel) just to try and use the "read from excel" function: [X,Y]=xlsread('DAR_ra... 10 Aug 2010 04:45

remove mixed noise from image
Hi, i need to remove mixed gaussian and impulsive noise from an image. Can anyone please provide me with an algorithm which can do this. I have read the paper titled "Switching Bilateral Filter with a Texture/Noise Detector for Universal Noise Removal" and "A Universal Noise Removal Algorithm With an Impulse De... 8 Aug 2010 12:18

Speaker Recognition system
Hey guys im doin a project on Speaker Authentication and recognition....i hav read about LPC and ANFIS system used for the same...which one should i choose?can anyone help me out with it??pls ... 8 Aug 2010 22:11

element array
Hello guys. I have a big problem about goodness of fit with chi-square method. I want to create program goodness of fit with chi-square method use Matlab. 1.There may of you that know how to create program goodness of fit with chi-square method use Matlab 2. If i have A = 3 6 8 11 9 8 6 3 1 if the element... 8 Aug 2010 11:13

customize two functions for GA
I hope to customize the GA based on the GA tool provided by Matlab. I met two problems about how to define one of the functions. 1. if I hope to customize the FitnessScalingFcn, The document says: """Scaling function (FitnessScalingFcn) specifies the function that performs the scaling. Your scaling function must... 8 Aug 2010 00:30

Wavelet-Galerkin
i will be happy to receive help on wavelet-galerkin.a simple 1D code will help. Thank you1 ... 7 Aug 2010 23:25

IIR design / FDATool?
I'm new to Matlab, and to IIR design, so sorry in advance if these questions are dumb. I've been playing with filterbuilder and FDATool just to get familiar with the options / design flow. There seems to be a lot of overlap. Why would somebody want to use filterbuilder rather the FDATool? Say I design a 6t... 9 Aug 2010 17:54

Quad function - how to pass additional argument
Still quite new to Matlab and learning all the amazing built in stuff. I was computing an integral the hard way and then found the quad function so thought I would give it a try, but can't get it to work=> function [ rho ] = rhocalc( z, tass ) rho (density) is a function of height = z, and also assumed tempera... 8 Aug 2010 03:43

mscohere speed with frequency vector specified
Hi I am trying to cross-cohere large amounts of data. My Fs is 1000S/s but I am only interested in coherence values from 0-50Hz. Therefore I feed in the frequeny vector into mscohere instead of a single nfft value as follows. freqs = linspace(0,50,251); [Cxy,f] = mscohere(eeg(:,i),abs(emg(:,j)),[1000],[500],fr... 7 Aug 2010 21:15

indexing an assignment
Is it okay if the source and destination overlap? For example, if I write A(3:5,1:3)=A(1:3,3:5), do I need to worry that maybe the new value of A(5,1) will be the old value of A(1,5) instead of the old value of A(3,3) (because maybe A(1,5) will be copied to A(3,3) and then A(3,3) will be copied to A(5,1))? I did a quic... 7 Aug 2010 21:15