Matlab

Trisurf with non-constant colors withing each triangle
Hi! Is there a way or a function to make a surface such as with trisurf-function so that the color would linearly change inside a triangle depending on the heights of the three nodes. Basic trisurf-function puts constant colors in each cell, eventhough the nodes have different heights. Thank you ... 26 Apr 2010 09:08

Save File Browser
Im aware of how to save an image, imwrite(finaleImage,FinalFileName,'jpg', 'Quality', 100); But how do i create/call a save file browser where i can browser the pc like most applications and type in the name desired. The chosen directory+file+.jpg would obviously become FinalFileName. Thanks ... 26 Apr 2010 06:57

loop optimizing
Hi all, I am trying to vectorize a piece of code with nested loops, but I seem to be getting it always wrong. Can anyone think of a way to eliminate the two nested loops in the code below? I am trying to compute a matrix M, and all things on the right-hand side like valFuncSigma, M_0v, M2_S and so on used to calcula... 26 Apr 2010 05:51

Test the cexecution time of task on VxWorks
I built a model via RTW and executed it on the VxWorks . I just want to test the real execution time of the task every step. How can I do it? Thanks! ... 26 Apr 2010 04:46

ARMA-GARCH estimation Using UCSD GARCH Toolbox
Dear All! When I use Oxford MFE toolbox to estimate parameters of the ARMA-GARCH model , I met a problem, and hope all your help! When using MFE GARCH toolbox to estimate the parameters in the ARMA-GARCH model, I follow tow steps: 1. Using log-returns to estimate the parameters in the ARMA model and get residuals. ... 26 Apr 2010 04:46

Manually changing variable while running a loop
I am currently writing a basic program to communicate to a micro-controller using Matlab. At the minute I can use the micro-controller to either act as a data acquisition unit and stream data into Matlab, or to act as a controller and manipulate actuators using commands sent from the Matlab interface. Ideally I wou... 26 Apr 2010 04:46

Binary Trouble.
Hi, I am trying to convert my RGB pic to BInary, the problem is that when i use the usual command, im2bw, i lose some of the part of my pic, can you tell me what should be the proper coding where i do not lose the yellow color of the image? ... 28 Apr 2010 23:06

Copy excel infomration using matlab
Hi, i need to copy a chart from an excel file to another using matlab. I need to copy the whole sheet. I've try to read the Visualbasic script that do this operation, but i've not fullfilled my task. After i've the actxserver for use excel: Excel = actxserver ('Excel.Application'); Workbook=invoke(Excel... 26 Apr 2010 04:46

Euler's Method Matlab Code: initial value problem
The problem is: Solve the initial-value problem using the Euler method: y' - y2 = -5x initial condition is y(0)=-1 time step is h=0.01 So I did this code which I think is really wrong. Can someone help? % Problem: y'- y2 = -5x or y'= y2 - 5x clear; y0 = 1; npoints = 50; dt = 0.01; y = zeros(npoints, ... 26 Apr 2010 09:08

Nested while loops within if statements
My code takes an initial angle ranging between 0 and 2pi radians. If the angle is between 0 and 0.5pi, I perform while loop A; if the angle is between 0.5pi and pi, I perform while loop B, and so on. The reason I have to do this is because I must manipulate the final output angle because asin only outputs the reference... 27 Apr 2010 11:01