Matlab

Frequent Patter Mining
Hey Guys, I have a to extract the frequent item sets using matlab. Let me give a flavor of the problem. I have data in the following format transaction_id, item_id example, 1,1 2,1 3,1 4,1 it means that item_id 1 was purchased in transactions 1,2,3 and 4. I have to maintain a list of each item_id and transa... 27 Feb 2010 12:06

Matlab/C#
hi, I'm using a matlab function with C# (visual studio 2005), My Problem: when i call the function i have a problem in converting int to MathWorks.MATLAB.NET.Arrays.MWArray my function is called like that: testMatlab.testMatlabclass t = new testMatlab.testMatlabclass(); t.functionName(int, int, int, int); ... 27 Feb 2010 08:47

Matlab/C#
hi, I'm using a matlab function with C# (visual studio 2005), My Problem: when i call the function i have a problem in converting int to MathWorks.MATLAB.NET.Arrays.MWArray my function is called like that: testMatlab.testMatlabclass t = new testMatlab.testMatlabclass(); t.functionName(int, int, int, int); ... 27 Feb 2010 08:47

fourier transform
i am quite new to MATLAB, cud u pls help me with the following problem... Given, x(t) = 1, - τ/2 ≤ t ≤ τ/2 = 0, otherwise where τ=10. Find the Fourier transform |X(w)| and plot it. If u do this mathematically, the answer should be... 28 Feb 2010 02:23

Tips on simulating on a "measured" power amplifier
Hello, just looking for some tips of how to simplify my MATLAB code. I got a PA model from a PA that I've designed, and measured one (I got the AM/AM-, AM/PM, output power vs. input power, etc, curves). Now I want to simulate how the output spectrum of the PA will look like when I put on amplitude modulated si... 27 Feb 2010 07:43

random selection of test files
Hello, can anyone help me? I have a program with input set of pictures. First it takes pictures and trains on them (face recognition). Then I need to randomly choose a picture and test it my program if it can match it with something in its memory. Is there any way/function/loop/command for random choosing of files? Tha... 27 Feb 2010 13:13

Why it said optimization terminated??
I tried to find a solution of nonlinear equation. the following is the m file: function F=find_omega_c(w) U0=4*pi*10^(-7);Ud=U0;E0=8.854*10^(-12);Ed=2.56*E0;b=0.01016;h=b/3; F=sqrt(E0/U0)*cot(w*sqrt(U0*E0)*(b-h))+sqrt(Ed/Ud)*cot(w*sqrt(Ud*Ed)*h); And then I tried to solve the equation: fsolve('find_... 1 Mar 2010 00:26

simulation of energy detection over fading channels
hello,every one! As a novice of cognitive radio, I am now very interesting in the topic of energy detection (ED), especially the performance of ED over different fading channels. Accoring to some papers, like On the energy detection of unknown signals over fading channels (which was included in IEEE Xplore, 2003). I... 29 Mar 2010 22:31

sendmail and href links?
Is there any way to combine these two? I would like to send a couple very large html link as part of a sendmail message but I don't want my message to be a wall of text. I've tried the obvious href tags, but these are displayed as actual text and are not converted to actual links. Any help would be greatly appreciat... 27 Feb 2010 01:17

Weibull!!
I've been having a lot of good experiences with the Weibull function using both the wblfit, wblplot and probplot functions to do a whole bunch of crazy stufff but I have finally run into a wall. I have a set of wbl data here: 0.65 0.88 1.46 1.69 2.06 2.36 2.59 2.62 3.59 3.91 4.76 4.92 5.23 5.34 5.69 5... 2 Mar 2010 13:31