Matlab

error : ??? Subscript indices must either be real positive integers
dpb <none(a)non.net> wrote in message <hrc083$l87$1(a)news.eternal-september.org>... 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 ... 3 May 2010 02:17

reading data from a text file
Hi: I have a problem to read input data in a text file. my input file looks like: % comments 11000 20 3 first line is a comment line having some characters, must be skipped second line contains three values that must be read individually, like variable a = 11000; b = 20; c = 3; please help me , how could... 3 May 2010 02:17

[Simmechanics] Double pendulum with absolute coordinate.
Hi! I am currently working on double pendulum problem by using simmechanics. It was ok to make double pendulum with relative coordinate because there are lots of good examples. However, I couldn't make double pendulum with absolute coordinate. I checked Seth' Blog (Thanks Seth!!) http://blogs.mathworks.com/... 3 May 2010 01:13

image segmentation
Hi, I need to do image segmentation to omit background image and noise from an image. For example, I have a bunch of grape and I need to omit the detached fruit from the picture. Please help me on this...thanks ... 3 May 2010 22:02

Dirac Delta Integration
Hello, Can anyone tell me why the results from the following two expressions are different? /////////////////////////////////////////////////////////// clc clear syms x int(dirac(x-1)*x,-inf,inf) + int(dirac(x-3)*x,-inf,inf) ans = 4 int((dirac(x-1) + dirac(x-3))*x,-inf,inf) ans = ... 2 May 2010 23:02

Curve problem
Hello, I have generated a curve that is consisting of transient response which is followed by steady state in a form of data points. Is there a way to find out whether the curve has reached steady state or eitherwise... Is it possible to do a loop from the last element of the data? Regards dirt ... 3 May 2010 07:39

Financial Toolbox
The Financial Toolbox comes preloaded with indicators such as RSI, MACD, etc Does anyone know if it is extensible so you can write your own indicators and use them as the preloaded ones? ... 2 May 2010 23:02

SOM Toolbox for Classification
How do i use the SOM Toolbox for classification......dividing a dataset into training set and test set....such implementation is not done in the SOM toolbox....how can it be achieved??. ... 2 May 2010 21:57

collecting data in loops
How do I store results generated in a loop when they are of different lengths? for i=1:390 find(mat(:,4)==i); end; I'm searching a matrix for values in the 4th column. Because of the data therein, find will return a different number of indices for each value of i (find i==1 returns 100 indicies, i == 2 ... 2 May 2010 23:02

From Workspace and Simulink sample time
I am new to matlab (simulink), so I don't have complete understanding of Simulink sample time. I have created a simulink model with a step input, where my sample time is 0.0001. This model works well. Now, instead of the step input, I want to apply an input using "From Workspace" block in simulink. If in matlab ... 2 May 2010 20:52