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Versatile Data Structure in MatLab

I need to plot multiple lines on an axis continuously, as in several lines might be drawn on an axis every time I push a button (I have my own simple GUI). The lines are not removed so lines are drawn on top of each other. The problem is that I need to keep certain variables associated with these lines, e.g.

- the handler (so that I can delete the line later on)
- 4-5 numbers
- 2 strings
- 3 vectors of various sizes (and the size of each vector might be different for different lines)

I'll have a button that should iterate through all the lines on the axis, access these variables associated with them and do calculations/delete lines/plot new ones. So I think I need an array of something but I don't know MatLab well enough. If that was Java I'd probably have to use a class, just to keep all these variables in one place.

If anyone knows about a good tutorial that'd be great. Or, if there aren't any such data structures in MatLab, what can I do to achieve what I'm trying to do?

Just to make it more clear, these lines represent Support Vector Machines (Regression). I need the variables for prediction when new data arrive. I'll be assessing different kernels and settings simultaneously.

Appreciate any help.

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Devom

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yuk99

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ezgigurkan

ASKER

That's brilliant guys, thanks a lot. I might use both cells and structs. One thing though, how are handlers treated? Can I keep them in cells or structs? And is "handler" a type on its own or a special kind of string or something like that? Once I store it in a cell, can I dereference it without any hassle?

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yuk99

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ezgigurkan

ASKER

Cheers guys...

Devom

You can put handles in both cells and structs. In the following I create a function handle, put it in a struct, then put both in a cell array.

>> a = @(x) 5*x;
>> a(5)
 
ans =
 
    25
 
>> b = struct('x5', a, 'num', 10)
 
b = 
 
     x5: @(x)5*x
    num: 10
 
>> b.x5(b.num)
 
ans =
 
    50
 
>> c = {a,b};
 
>> c{1}(c{2}.x5(c{2}.num))
 
ans =
 
   250

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