Matlab

preplotting
Hello All, Is there an efficient way to plot many large data sets at a time? The software we are developing has to, among many other things, analyze data from hundreds of specific events observed under a microscope and compile a plot for each event consisting of two line graphs. I've been using plotyy to plot the da... 2 Aug 2010 11:25

Variable precision / significant figures problem.
Ok, sorry if this is a stupid question, I'm still kinda new to Matlab. So I am working on some of the problems from Project Euler and got stuck on question 16 which says "2^(15) = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. What is the sum of the digits of the number 2^(1000)?" Currently my c... 3 Aug 2010 11:25

How to make .exe smaller?
Dear all MCC/Deploytool can make .exe file from M.files. I am a newcomer to mcc/deploytool. Can you give me some advices or tips about how to reduce .exe file size? These days, I found that sometimes even a very minor change in .m file can result in expanding .exe file size, so I am puzzled about the mechanical of mcc... 2 Aug 2010 08:08

using H bridge in Simulink
Hye guys, I want to build a class D amplifier in Simulink. I already had built the PWM generator and the low pass filter as the part of the amplifier, but I cannot find a way to connect the H bridge to the pwm generator and the low pass filter. How can I do it? Thanks in advance for any help. ... 1 Aug 2010 19:11

How to train a neural network with an empty input?
Hi! I'm designing a neural network and my code is as follows: --------------------------------------------------------------------------------------------- input=csvread('input.txt'); target=csvread('output.txt'); net=newff(minmax(input),[8,15,1],{'tansig','tansig','purelin'},'trainlm'); -----------------... 2 Aug 2010 11:25

parallel toolbox, submitting a job
Hello, I'm considering trying out the parallel toolbox first to solve a simple (though large) system Ax = b. MATLAB comes with an excellent demo showing how solve this system using spmd. I was able to modify the demo code so that the matrix A and the vector b are what I want them to be. I tested the program on a 2 q... 5 Aug 2010 04:48

plotting problem
Hi Matlab community, After some ill-advised manipulation of my figure handle settings, every figure I now plot appears in all black with no data visualized. I'm still able to change my figure properties (i.e. changing the background to white) but no matter what I do, I am unable to visualize my data. I suspect t... 1 Aug 2010 15:55

plotting transcendental etqution set curve
Hello you Matlab Guru's, I have 2 transcendental equations in 3 variables (1 degree of freedom). I wish to efficiently plot equation set curve (or multiple curves as uniqness is not promised). Any suggestions rather than just placing values into one of the variables and "FOR" it? Thx, RAB ... 2 Aug 2010 19:09

fft and ifft
timesignal = sin(1:100); freqsignal = fft(timesignal); rectimesignal = real(ifft(freqsignal)); here time signal and rectimesignal are same..... ... 1 Aug 2010 14:49

ifft from fft (Retrieving signal from a fourier transform usingifft)
Dipasree Som wrote: I am using matlab for first time. I want to retrieve back my original time domain signal using ifft and then plot it. Plotting is neglecting the small imaginary part, how can I avoid this and plot this imaginary part together? plot(x,real(y),'r',x,imag(y),'g') ... 1 Aug 2010 13:44