Filtering array of custom objects

Hey!

I was wondering if it is possible to implement the filtering of arrays as describes here: Find Array Elements That Meet a Condition for an array holding objects of a custom class.

I have a class with the following property

properties (Access = public)
        stages (1,:) EnvelopeStage
end

An EnvelopeStage object has the following properties

properties (GetAccess = public, SetAccess = public)
        name string
        duration double {mustBeFinite, mustBeNonnegative, mustBeLessThanOrEqual(duration,1)} = 0
        target_level double {mustBeFinite, mustBeNonnegative, mustBeLessThanOrEqual(target_level,1)} = 0
end

What would be the smartes way (besides iterating over the array) to filter by name?

Is there a way to implement or use a function that yields the elemtens with code like this:

stages(stages.name == 'foo');

Thank you very much

Tim

Answer 1

[Honglei Chen]

You can probably try

idx = arrayfun(@(x)strcmp(x.name,'foo'),stages);
stages(idx);

HTH

[Timo Kuchheuser]

That worked like a charm!

Thank you very much!

[Sebastian Tilders]

This does not work, as it does not return indexes. It return strcmp results. stages(idx == 1) works for me.