Matlab

How to make a specified part of picture blink/flash ?
How do i make a specified part of a picture blink/flash using simulink blockset ? Can anyone guide ? Thank you . ... 9 May 2010 00:20

GUIDE plot
Hi, How do you change the axis in figures in GUIDE? I tried axes(handles.axes1); axis([-1.5 1.5 -1.5 1.5]) in the .m code but that also enlarges the plot visually. I also tried to change XLim, YLim in the property but again, that makes the plot look too huge for display. Which property needs to be modif... 9 May 2010 00:20

TeX in xlabel()
I'm trying to produce the following LaTeX in my xlabel: "\sum\limits_{k_i \ne k_j} \left| k_i - k_j \right|" This simply fails. Matlab seem unable to interpret \ne as well as \limits_{summation index} The best I can get is "\Sigma_{k_i != k_j} | k_i - k_j|" Does anyone have a more accurate solution? ... 9 May 2010 06:45

How to run a function in diferent labs with diferent data?
I got the next code: for i = 1:L a_ext = [an an(1:lf)] if labindex == 1 lpf = conv(a_ext,h0) lpfd = lpf(lf:2:lf+lx-1) elseif labindex == 2 hpf = conv(a_ext,h1) hpfd = hpf(lf:2:lf+lx-1) end an(1:lx) = [lpfd hpfd] lx = lx/2 end That i run in a matlabpool w... 11 May 2010 03:31

save a large 900*1 cell
I am trying to save a large 900*1 cell "cellvariable" (~ 1G) using the command: save cellvariable_2010 cellvariable -V7.3 I have enough memory and hard disk space on my computer. Why is MATLAB always showing busy and never finishes the saving process (for 2 hours)? I am using MATLAB R2009b. Thanks. ... 9 May 2010 12:07

Multiple Sample Times in Simulink
Hello, I currently have a model in simulink running in real time, it has 2 data blocks that give out variables at 2 different sample rates 1 is at 100Hz or 0.01s and the other is at 5Hz or 0.2 sec. When i come to fuse the data together in a filter I find that the 5Hz Data inherits the same sample time as the 100Hz da... 8 May 2010 23:15

Passing parameters in function handles for ode45
Hi all, I ask you a syntax help because I have a problem in passing parameters in aa function handle whithin ode45. I define a function in the file distance_integral.m: function [dxds] = distance_integral(s,x,mu,sigma) dxds = 1/sqrt(1 + gaussian_der(x, mu, sigma).^2); Then I use such functio... 10 May 2010 05:30

Subscript Index error...
Hi, Trying to execute the following function in matlab but have had limited success. n=2^ndx; x(1) = 0; x(n+1) = randn(1,1)*2^(ndx*H); s(1) = sqrt(1 - 2^(2*H - 2)); for i = 1:n s(i+1) = 2^(-H)*s(i); end for i = 1:ndx for j = 0:2^(i-1)-1 k = 2^(ndx+1-i); Q = randn(1,1)*2^(H*ndx)*s(i+1); ... 8 May 2010 22:10

no true date iteration in matlab
Coming from a C++ environment using the Boost library, I'm disappointed to see even with the Financial Toolbox there appears to be no true data iteratior in matlab. For example, if I want to iterate over some dates and use other date related functions in that loop, I have to maintain a seperate variable just to cal... 8 May 2010 23:15

Easy Alising/Frequency
Hi, I am trying to zero-pad and image and a lapalcian filter so that i avoid spatial-domain aliasing. I know how to find the sampling rate (as in fs=1/T)when everything is in the frequency domain of a simple math problem... but not of a read image (like a picture). i know that this is probably an easy problem, bu... 8 May 2010 18:54