Matlab

plot the values from an ifft and parseval's theorem
hi, i'm generating a power law noise spectrum, F(w), generating the real and imaginary part of a signal. so, having these, i plug them in a ifft to get the function in time, f(t). next i want to do the following: i) test Parseval's theorem: integral [f(t)]^2 = (1/N) * integral [F(w)]^2 ii) plot the time functi... 10 Jun 2010 04:32

Sample time - sequence stair
I have to add something. It behaves weird. When I try to up-sample the output, it behaves like there where 4 10-long samples. But when I try to down-sample, it treats it as a 40-long sample (see below). Any ideas why? sample time set: 40, up-sample factor: 4, down-sample factor: 4 up-sample: 3,7,1,5,9,2,0,8,6 ... 4 Jun 2010 21:22

Saving a figure (using script) in a specific directory
Hi, I am having to save lots of figure files and wanted to do it inside my m-file. I was using the saveas function, but that only seems to save in your current directory. Is there any way to save figures in a specified directory? Thanks, Steven ... 5 Jun 2010 11:24

Discrete u(k) or 1(k)
How to write step function like 0 for every discrete k <0 1 for k>=0 I need this for isolate only the causal part of a signal like f=2^(k) ... 4 Jun 2010 23:33

[Simulink] Sample time - sequence stair
Hey, I have a problem with the sample time of repeating seq. generator ("repeating sequence stair") output. I set it to sample time of 40 but it outputs 4 samples, each of a sample time equal to 10. So it's like: 3 3 3 3, 7 7 7 7, 1 1 1 1 instead of 3 - - -, 7 - - -, 1 - - -. this really messes up with my design. An... 4 Jun 2010 18:05

Jacobians for Gauss-Newton
I see MATLAB solves non-linear eqs with Subject. There's some sort of interface for Jacobians. How are they provided? ... 4 Jun 2010 21:22

creating georeferenced grid
I have gridded georeferenced data in a simple columnar lat, lon, value format. How can I convert that to a georeferenced grid so I can plot it with geoshow. I have the Mapping Toolbox. I'm sure it's easy, but I'm getting lost in the help. ... 7 Jun 2010 13:00

Axis layout determined by camera position [GUIDE]
I have a GUIDE application which contains an axis object which is used to display an image. For some reason the position of the axis is being determined by the property 'CameraPosition' and not 'Position', and I am unable to set the position of the axis properly. I added an annotation rectangle with the same 'Pos... 6 Jun 2010 12:42

SVM
I had the same problem. This is what I did Go into the optimiser directory and type, mex -v qp.c pr_loqo.c it should create a file called qp.mex***. copy paste this file into svm directory. This will work regards, Avesh "Srinivasan Amarnathan" <srinivasanms16(a)gmail.com> wrote in message <hnb9ok$bbk$1... 4 Jun 2010 16:58

Problem with Loop in GUI
Hi all, I'm putting together a GUI that will take out an instance of data of Gait trials, and represent them in slices. I'm doing this by incorporating a graph with a scroll bar. I can get it to "work", but the problem is that the scroll bar runs by itself from 1 to the total number of gait cycles. Ideally, I ... 4 Jun 2010 16:58