How to extract property values from an object array and put it into a new array?

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Nirmal Hirani
Nirmal Hirani 2022-10-13
编辑： Matt J 2022-10-13
classdef Datatest
properties (SetAccess = 'public' ,GetAccess = 'public')
Name
end
end
% creating 4 objects of the class 'Datatest'
x1 = Datatest();
x2 = Datatest();
x3 = Datatest();
x4 = Datatest();
% Changing the name of each objects property
x1.Name = 'test1';
x2.Name = 'test2';
x3.Name = 'test3';
x4.Name = 'test4';
% array of objects
list = [x1 x2 x3 x4]
dropDown = zeros(1,4)
for i=1:4
dropDown(i) = list(i).Name
end
i would like to create an array called 'dropDown' and extract all the names of objects from the object list. I tried this code which is giving me an arror "Unable to perform assignment because the left and right sides have a different number of elements."

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采纳的回答

Matt J
Matt J 2022-10-13
编辑：Matt J 2022-10-13
Ran in:
% Changing the name of each objects property
x1.Name = 'test1';
x2.Name = 'test2';
x3.Name = 'test3';
x4.Name = 'test4';
list = [x1 x2 x3 x4];
dropDown=string({list.Name})
dropDown = 1×4 string array
"test1" "test2" "test3" "test4"

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