Math Forum / Math Software / MATLAB / July 2008

I've been working on a piece of data processing code in c#
for a project, however ideally I would like to be able to
call the code from Matlab.
Although there's lots of articles available on the reverse,

I realize that my problem could be very silly!
However, I can't solve it.
I need to write a text file in a standard format (Nastran)
where data have to have an overall fixed lenght.

I have a code that solves a problem with multiple unknowns
and I want the solution set to have constraints. Lets say I
have x1, x2 and x3 as solution set elements and I want x1 to
be between 3 and 5, x2 between 6 and 8 and x3 between 20 and

Say I have three arrays of different size: ts,tv,tp
ts(1,:,:)=[1,1,1;1,3,3];
ts(2,:,:)=[2,2,2;2,4,4];
ts(3,:,:)=[3,3,3;3,5,5];

I have a little problem with making dynamic file naming for a matlab program. Can anybody see how I can solve this problem. My non-functioning code looks something like this:
prefix1 = 'path/to/data1/datatype1';
prefix2 = 'path/to/data2/datatype2';
prefix3 = ...

I have a MATLAB-based program which produces multiple data
files in a folder. Now, I need to extract some parameters
from those data files, however, I need to know the no. of
total data files in the folder in order to use for-loop,

I have a question regarding coding tricks one can use to
make Fixed-Point Toolbox run as fast as possible.
I have read elsewhere on this newsgroup that BLAS
http://www.intel.com/cd/software/products/asmo-na/eng/266858.htm

Hi All,
Have a parameter estimation problem that needed your help.
A set of 2-D data, datasetA, is extracted from experiment.
A for-loop formula ( a bit complicated, instead of a one

How can I plot a cube?
I don't understand how to use "fill3" function.

I have a curve representing a transmission feature (y: reflectance, x:
wavelengths), now I want to determine the wavelength of maximum reflectance
by bisecting the recorded transmission feature. The first step I guess should be
to get the x values (wavelength) at set y intervals ...

car plate detection

I am trying to do pattern matching via matlab website  
pattern matching example
http://www.mathworks.com/access/helpdesk/help/toolbox/vipbl
ks/index.html?/access/helpdesk/help/toolbox/vipblks/ug/f126

how to write the file into different directory?
the 'filename' closed before the end of the actual file name,
which is before '%d_f'
csvwrite('C:\(num2str(ceil(handles.value),'%d_f')), []);

i am trying to built a namespace for some of the mathlab function and
i find some problem
my first problem is the function
feval.m

I am new to matlab so I dont have that much experience. I
designed a GUI with two buttons and a text box. The user
inserts the name of the file in the textbox and by clicking
pushbutton1 a plotting code is executed plotting the data