Matlab

urlread and Excel-webquery example
This is how a web-query my company require inputdata from matlab. Then you get a string in return, but for obvious reason can I not supply URL and other parameters for testing. %% BUILDING THE QUERY STRING % Define the cell-array that will pass values to the query. param = cell(1,18); % COMMENT: Notice th... 16 Sep 2009 05:06

ARX/ARMAX
Hi everyone, I'm using the System Identification toolbox (ARX and ARMAX methods, more specifically) in order to obtain regression models for my data. My problem basically consists of an input matrix of temperatures (X) and an output vector containing natural frequencies. Their dimensions are: X (13 x 9) - wh... 16 Sep 2009 04:01

Calculation Lyapunov exponent from a given time series
Hi all, I have time series (long enough) and I want to calculate the LE of it. Does Matlab has any inbuilt function/toolbox for this? Thanks, Grd'n ... 21 Sep 2009 18:00

Video stream from an IP camera
> Did you solve this? I need to also capture and process a motion jpeg stream from AXIS 211M. I know pretty much how to get single still images, but not sure how to handle the video stream. Are you capturing single images from the AXIS camera in MATLAB? how are you doing it? ... 15 Sep 2009 18:02

running out of memory
hi again, i have some problems with my codes, i need to store d array into a mySQL database, but it has these error messages : ??? No constructor 'com.mathworks.toolbox.database.sqlExec' with matching signature found. Error in ==> cursor.cursor at 60 curs.Cursor = com.mathworks.toolbox.database.sqlExec(curs.SQ... 15 Sep 2009 04:36

Simulink/GUI thread interaction
Hi All, I've got a Simulink model that has a Level 2 M-file S-function that calls a nested GUI function at every update step. The point of course being to update the GUI at every step of the simulation. Here's the issue: Simulink runs in a seperate thread than the GUI. If I call a callback (push a button for inst... 14 Sep 2009 18:40

print flag -r864
Can anyone explain the "default" -r864 for the command line print function using -depsc2. The help info states this to be the default for non-image, non-metafile formats (what's left?), but the doc makes no mention of it in 2007a. (For what it's worth, I'm using Mac OS X.4.) When is this value actually used? Wh... 15 Sep 2009 12:22

reduce step size error
On 14 Sep, 06:42, "vinu georgep" <0807...(a)rgu.ac.uk> wrote: dear friends while using matlab i encountered a problem>> [t,y] = ode15s(@hydrovdp,[0 86400],[1000 1]); Warning: Failure at t=5.676399e-010.  Unable to meet integration tolerances without reducing the step size below the smallest value allowe... 14 Sep 2009 05:15

reduce step size error
Dear vinu georgep! while using matlab i encountered a problem [t,y] = ode15s(@hydrovdp,[0 86400],[1000 1]); Warning: Failure at t=5.676399e-010. Unable to meet integration tolerances without reducing the step size below the smallest value allowed (1.654361e-024) at time t. In ode15s at 819 ... 14 Sep 2009 05:15

strange error message
Hello Folks, I typed in these commands: t=0:0.01:2*pi;s=t; x=cos(t).*cos(s);y=cos(t).*sin(s);z=sin(t); surf(x,y,z) I got the following error message: ??? Error using ==> surf at 78 Z must be a matrix, not a scalar or vector. What am I doing wrong??? ... 19 Oct 2009 13:02