Matlab

question on using cov
Hello, I'm trying to visualize the spread of a function(x,y) minima, caused by modeled measurement uncertainties, and how it changes by increasing the number of measurements. That's what i did so far: - generating a grid xy - evaluate a test function z=f(x,y) and add error term - perform fit to obtain function... 29 Apr 2010 12:23

Storage container for multiple object types
Hi, I want to store an 'array' of multiple object types. On each iteration of a loop I want to be able to store several different types of objects(user defined classes) in something like an array to record the state at each iteration? Whats the best way to do this? Thanks Richard ... 29 Apr 2010 13:31

CT sinogram
I try to use fanbeam function and ifanbeam to get the sinogram of a CT Image and after that rebuilding the image. I'm able to do the operation with the phantom image of same size as my CT image but it does not work for the CT image. This is the code I use Sinogram = fanbeam ( Im, 650, 'FanSensorGeometry', 'line' ... 29 Apr 2010 11:14

CPU for xPC-Target
Hi everybody, I am searching for the fastest CPU for xPC-Target 4.1 If my information is right, this version of xPC-Target is not able to use more than one core. Therefore I am searching for a CPU with the most per-core performance. At the moment I tend to use Intel Core i5 661 or Intel Core 2 Duo E8600. Both CP... 29 Apr 2010 11:14

How do I get the name of the caller function?
Hi, Say I write function "X" which I intend to be called by other Matlab functions. Is there a command I can insert into X which would report the name of the function that called X? I don't want to have to pass the name of the caller function to X as an input variable. i.e. this would not be a suitable solution:... 30 Apr 2010 11:42

time series prediction by fuzzy logic
Hello all, I want to use the fuzzy logic toolbox for time series prediction. I have seen the Fuzzy-logic Toolbox in Matlab. But I can´t find any good notes or examples on how to use the Fuzzy-logic toolbox with time series forecasting ? How do I do that? Anyone who has done similar test ? Someone to have som Matla... 12 May 2010 05:53

Stand Alone exe
Hi, I have a question regarding, making of stand alone exe. I am currently working on big simulation that contains many m-files, simulink model containg s-functions and the s-funtions are developed using c files and GUIDE. On GUIDE i have created a main screen with push buttons and drop down menues to control everyt... 3 May 2010 05:30

Plot of a specific color
Hi everyone, My problem is the following: I have a picture, and I would like Matlab to plot only a specific color of it (for example black), in order to be able to see exactly where the zones covered with this specifiv color are located. Does anyone of you know how this could be done ? Thank you for your help ! ... 29 Apr 2010 11:14

Memory leakage
Hi, I am working on a GUI application containing a main while loop controlled by a Start/Stop button. In a certain setting I have found that the memory usage increases for each roundtrip in the program. It is not supposed to and I got suspicious. Calling the memory function inside my loop indicates that the memory ... 29 Apr 2010 10:06

error : ??? Subscript indices must either be real positive integersor logicals.
Ali Haider wrote: I have written a function that calculates some variable "t": function t=t_from_phi(phi, far) i = 0; t = exp((phi - 2.81661)/3.648659); error = phi - phi(t, far); .... end the above function uses one more function "phi(t,far)" i.e. function phig = phi(t,far) ... 29 Apr 2010 10:05