How to iterate/loop structures array field's values.
For 1x1 struct
student = struct();
student.name = 'jim';
student.gpa = 1.9;
I do this :
fields = fieldnames(student)
for i=1:numel(fields)
var = fields(i)
end
But I don't how to iterate 1 x 2 :
student = struct();
student(1).name = 'jim';
student(1).gpa = 1.9;
student(2).name = 'ryan';
student(2).gpa = 1.5;
You need to have either another for loop
fields = fieldnames(student);
for k = 1:numel(student)
for m = 1:numel(fields)
var = student(k).(fields{m});
end
end
Alternately, you can use the fact that the dot notation will create a comma separated list and you can place them in either a cell array (for strings) or a normal array
names = {student.name};
gpas = [student.name];
I typically prefer to use the second approach most often for accessing the same field from a struct array.