I have a structure XYZ containing information about elements 01 to 04. I need to read or write to the elements based on the provided instance ("inst") number. Matlab gives the error "Reference to non-existent field 'strcat' or 'element'. I understand why Matlab gives the error. Trying to figure out how could I pass the field information to read or write to the element?
% XYZ structure
XYZ.Element_1 = 1;
XYZ.Element_2 = 5;
XYZ.Element_3 = 6;
XYZ.Element_4 = 7;
%Instance number
inst='1'
%Concatenate instance information to obtain the field
element=strcat('Element_', inst);
%Read the value of Element_1
var1=XYZ.strcat('Element_', inst);
var2=XYZ.element;
To access different fields you can use () around the Field_Name to be accessed.
% XYZ structure
XYZ.Element_1 = 1;
XYZ.Element_2 = 5;
XYZ.Element_3 = 6;
XYZ.Element_4 = 7;
inst = '1';
Field_Name = strcat('Element_', inst);
var1 = XYZ.(Field_Name);
inst = '2';
Field_Name = strcat('Element_', inst);
var2 = XYZ.(Field_Name);
@Cris Luengo. Nice catch.