Matlab

How to read data continuously?
Hello, I am now reading analog input from a NI board. I am able to get a certain number of samples within a specified period, but how to get the data continuously and display them on a graph? Thanks. Siping ... 23 Jun 2010 08:24

Calling To Video Display blocks into customs GUI
"Kostas " <kosotiro(a)yahoo.gr> wrote in message <hsjf0f$8rs$1(a)fred.mathworks.com>... "Kostas " <kosotiro(a)yahoo.gr> wrote in message <hsh7d6$r74$1(a)fred.mathworks.com>... Alec Rogers <alec.rogers(a)mathworks.com> wrote in message <hk98o2$glu$1(a)fred.mathworks.com>... Hi Muhammad, Using t... 16 Jul 2010 11:00

min ||Ax-b|| for large sparse A
I've seen this on several threads in MATLAB central, but haven't found a suitable solution. Here are some properties of A: size(A) -> 2061233 2058240 sprank(A) -> 2058240 sprank([A b]) -> 2058241 nnz(A) -> 8232960 ; numel(A) = 4.2425e+012 I'm trying to min ||Ax-b||_2^2 The only function which works is lsq... 2 Jul 2010 11:17

Use function imerode
Hi, I have a grayscale image. I want erode this image of 1 pixel. Which kind of morphological structur do you recommend me to use? Thanks for help me Andrea ... 22 Jun 2010 10:27

Delaunay with given amount of triangles
Hello All, I'm looking for a way to do "reversed" Delaunay Triangulation. Let's say I have a unit square (1x1), and I want to divide it into a given number of triangles. Where exactly the required xy points are located, and how many are needed, I leave for patternsearch to solve. Is this even possible, and how d... 23 Jun 2010 02:59

Visualize a output on the DOS prompt
Hi, in my MATLAB program I do a system call to run an exe-file. This exe-file generate an output and the output has visualized on the MATLAB prompt. Is it possible to visualize the output on the DOS prompt instead on the MATLAB prompt? The MATLAB command system('start') allows me to open the DOS prompt but I ... 24 Jun 2010 09:36

Matlab Compiler Java error in Windows 7
Hello, I am bored of being Deja Vu with this error. As I have seen, there are many posts related with this "AWT-EventQueue-0" java.lang.InternalError. But no really exact solution yet. Any help would be appreciated. "Sam " <rkmend01(a)louisville.edu> wrote in message <hqvvh5$act$1(a)fred.mathworks.com>... S... 22 Jun 2010 10:27

Levenberg-Marquardt Optimization Queston
Hi guys, I have a data set that I want to fit to the Laplace distribution and have some problems in doing so, however fsolve gives the correct answer. I want to replicate it step by step. The code that I use is: data = [-1 5 2]; x0=[0 1]'; x(:,1)=x0; index=1; n=length(data); l=0.01; ... 22 Jun 2010 18:14

Question on 'Surf' and Parametric surfaces
Hi, Im looking at creating 3D objects using the surf command. My idea is to plot the upper and lower surface of an object with the surf command - easily done, as an example: [X,Y,Z1]=peaks(100) Z2 = Z1 - 10 C = Z1 surf(X,Y,Z1,C); hold on; surf(X,Y,Z2,C). I then currently calculate the boundary faces and use patch ... 23 Jun 2010 16:11

How to keep msgbox from coming to foreground?
I have a msgbox which updates during each iteration of a loop, like this: for i = 1 : 1000 .... .... msg=msgbox('blablabla','Title','replace'); end Now, I'd like the text in the msgbox to get updated without necessarily bringing the msgbox to the foreground. The reason is that sometimes the ite... 24 Jun 2010 09:36