Matlab

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button group, radio button using guide
i have created a button group with four radio buttons and a push button using guide. four functions for each radio button written separately. 1.how to call these functions to respective radio buttons. 2.when the push button is pressed, corresponding radio button's function which has been checked should execute.... 20 Apr 2010 15:56

faster ismember
I ran profiler on my code, and ismember is the culprit. In most cases, I simply need an index for a vector: if A = [0 1; 4 5; 6 7]; and B = [4 5]; then [~, index] = ismember(B,A,'rows') yields index = 2, which is all I need (the first return value is always true, no checking needed). But this is slow. Can any... 12 Apr 2010 17:01

regarding histograms..
See help imfilter and help hist. That will get you to the histograms; you then need to define what you mean by their difference - if it's just the ordinary arithmetic difference you can just use the ordinary subtraction operator, but maybe something more sophisticated is wanted. ... 12 Apr 2010 17:01

How to use decsg function in this case?
descg(shape, sf, ns) with shape is a csg matrix having 2 column: 2 objects of domain. ns=[80 80; 49 50]: P1,P2 What is sf if I want set formula is P1-P2? Is it ' - ' ? I tried but unsuccesful. Thanks a lot for your consideration and answer. ... 12 Apr 2010 18:08

regarding histograms..
hello... I am doing a project based on histograms.I need to find the difference between the histograms of a filtered image with that of the histogram of an original image.iI am asked to do in matlab or with any other method.plase reply me... ... 12 Apr 2010 15:53

A Simple Question about graphshortestpath
Hi Everyone I have a simple question about the use of graphshortestpath Matlab function. I have the following code: W = [10 10 10 10 15 20 50 10 20 10 10]; DG = sparse([1 1 2 2 2 3 3 4 5 6 7],[2 4 3 5 6 6 5 5 6 7 3],W); UG = tril(DG + DG'); h = view(biograph(UG,[],'ShowArrows','off','ShowWeights','on')); ... 12 Apr 2010 15:53

GUI: create a pushbutton to restart from the beginning
Hi all, I have a pushbutton called "reset" which must restart my GUI from the beginning...erase my images in the axes, erase results I've obtained in tables, etc... ... 12 Apr 2010 15:53

Multiply out 10 factors
I want to do something simple, but I cannot do it right in Matlab and need help: Multiply out: (x-a)(x-a^2)(x-a^3)...(x-a^10) How can I do this? I tried so many things, including entering the equation. However, Matlab does not give me the resulting polynomial, it gives me a factorization (which is not what I look... 12 Apr 2010 18:08

inverse z transform
X(z) = (1+0.3^(z-1)+5.02^(z-2))/(3.2+2.41^(z-1)+2.2^(z-2)) I need help to apply inverse z transform recursive algorithm on this system above for the first 3 samples of resulting discrete time sequence x[n] Any idea on how to do this would be greatly appreciated thanks x ... 13 Apr 2010 17:19