Math Forum / Math Software / MATLAB / July 2008

blok=[15 15];
size(r)=320 240;
fun=@(x) mean(x);
r=colfilt(double(r),blok,'sliding',fun);

Hey everyone!
So I'm trying to run a loop with regexp.  Here's the quick
program I wrote...
%---START PROGRAM---

I'm new to Matlab and struggling with the following problem:
I've finally succeeded in finding a way to define large
numbers of symbolic variables using:
tmpl1='x%3.3d\n';

For the sum of independend random gamma variables, I have used the exact formula of Moschopoulos (1984), which I have implemented in Matlab. The problem is that is doesn't work.
I know that the problem lies in the gamma(p+c), it approximate Inf to fast.
I don't know how to scale ...

I'm working with ksdensity sw module and I would like to
know how the width of the window is chosen; in particular,
I' working with Gaussian Kernel (the default option), I
think that the width depends on the number of samples, but

I have writen program similar to one given here.
it shows no error in the editor but when i run the program
it shows error, unable to understand why this error comes
and how to clear it.

I'm working with the R2008 version of matlab.
I have created a class (lets say classdef circle) and I want
to preallocate a vector of these 'circle object'. How can I
do that?

I was wondering if there is a way to search within
a matrix or multidimentional array (e.g 30x10).
This search would point out a value which has
repeated within the same column say 3 times

I want to find the solution to A*x=RHS
A=[5.742    -5.718    -0.022    793.04    -81.114    0
  0.2075    -0.2047    0    57.751    -36.543    6.7566
 -0.0032    0.208    -0.264    1.6    26.4    6.1764

Hello Matlab users,
I have questions on matrix operations and appreciate some
help.
First, I need to inverse an n by n symmetric matrix H,

I am attempting to use Matlab to output data to a
spreadsheet, and to simultaneously format that
spreadsheet.  To this end I have been using the
xlswritespec function, which I downloaded from the file

I have studied Sample Training Session in neural network toolbox.
Codes are:
load choles_all
%reset random number generator.  Otherwise, one gets different results

It could be possible to fill a 4D matrix with different 3D matrices?????
I'm trying to fill a 4D matrix with some 512x512xN matrices  where N can be 4,
8 or 16.
/  512x512x8   512x512x4   \

Another newbie question.  
How do I retain an array / variable / ... in the workspace
when it's created in a callback function of a GUI?
Thanks,

How to browse a matrix file and keep the content of it in a
memory.
if you have two matrixes