Can I store and call functions from within a struct?

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Julian
Julian 2018-9-3
评论： Hank 2019-5-1
Hi everyone,
i want to create a struct with the following fields: analysis(i).type (this is a list of different types of possible analysis) analysis(i).function (this should contain the specific function that should be executed, if a specific type of analysis was chosen)
I've tried some things so far, but nothing worked...so i'm wondering if this is even possible?
Thank you!

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Stephan
Stephan 2018-9-3
编辑：Stephan 2018-9-3
Hi,
you can store function handles in a struct and use them like this:
fun1 = @(x,y) x + y
fun2 = @(x,y) x - y
analysis.add = fun1
analysis.subtract = fun2
res1 = analysis.add(1,2)
res2 = analysis.subtract(5,3)
Best regards
Stephan
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Guillaume
Guillaume 2018-9-3
And if the function to execute is a m file (as opposed to anonnymous functions in Stephan and Stephen's example), then:
%store function handle to m file myfunc.m:
analysis.add = @myfunc

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Hank
Hank 2019-5-1
编辑：Hank 2019-5-1
To further this question, I would like to use fields of the struct as parameters in the functions, hopefully without having to write an entire class for this purpose.
for example
circ = struct('Radius', 3 ,...
'Area', @() pi*Radius^2 );
where 'radius' in the anon function somehow references circ.Radius
Then, radius may be change by other programs or the user action but whenever I access circ.Area, it references the current radius.
Cheers, Henry
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Guillaume
Guillaume 2019-5-1
You can link to this question in your own. We can't answer an Answer, only comment on it. You can't accept a comment as resolving a question asked in an answer.
Hank
Hank 2019-5-1
Fair enough. I think I've resolved that this can only be acheived by creating a class for the object i'm interested. There's no support of methods for a struct.

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