Math Forum / Math Software / MATLAB / July 2008

Hi everyone,
I'm new the forums -- Hello!
I posted this on the Kluid forums as well but I haven't received any responses; I'm trying to analyze some data for my research and I'm getting a bit desperate at this point.  I'm having some trouble importing data from a text file into a ...

Hi there,
After I executed my code, it's shown as fellow
Error using ===> odearguments
Inputs to odearguments must be floats, namely single or

Is it possible to draw filled the contour plots without contours in
matlab.
thanks

 I m Having a problem with NN training & testing for Face
Recognition.
 here i want to share with u my input & output pattern for NN & want
suggestion of modifications...

I have a function z=f(rho i.e. radius, theta i.e. azimuth angle). I
want to plot the function on a polar plot with the color graduation
representing the z value. Could anybody tell me how can I achieve
this.

I have
A=[1 X; 0 X];
b=[Y;Z];
where X, Y and Z are vectors and I want to do x=A\b to find two

It is amazed to me that when I use MATLAB2008a to caculate
my code, the results from 1 thread(1 core in my computer)
and 2 threads(2 core in my computer) are different. For
example, in 1 thread the code may has an error at 834 loop,

I'm a beginner at Matlab and need a help.
I made a m.file and it is shown in "Current Directory." But anything I defined in m.file doesn't show up in Command Window.
Foe example,
I defined A=3 in m.file

Does any one know how to fit data of the following type:
x - column of real numbers (first independent variable)
y - column of real numbers (second independent variable)
f - dependent variable, also a column of real numbers

Does anyone have a copy of VRMLplot.m, can't seem to find a working
download site anywhere?
Thanks

Hey guys,
I am using Matlab Genetic Algorithm (GA) toolbox to
optimize my objective function of a problem I have. As far
as I know, the Matlab GA is contineous search. For example,

I have a plot where the text is overlapping when i plot but
after maximizing the screen it looks nice.  I have tried
the print and saveas function after i max the window but
the tiff image looks like the original image with the

I made a function "Shuffle(C)" C=[1,2,3]
I want to repeat this function 999 times.
how can I do it?
Thanks,

I have data file as .txt
example is :
-0.03541    -0.010
-0.03540    -0.010

i have looked for many months in matlab
2007a,internet,forum,but i cannot find any useful
information about function sigexpand.
Maybe it is not in my edition of matlab...can anybody tell