How to check if a element of a struct is empty?
58 views (last 30 days)
Show older comments
Dear All,
I defined a struct and initialize it in the following way.
Res_All_Meas = struct([]);
[Res_All_Meas(1000).ind] = 0;
[Res_All_Meas(1000).res] = 0;
[Res_All_Meas(1000).xline] = 0;
[Res_All_Meas(1000).colnum] = 0;
Now in an iteration, I want to check if Res_All_Meas(i) is empty or not. If it is empty, I will assign some valeus to it.
Thanks a lot.
Benson
3 Comments
Stephen23
on 15 Oct 2020
"I want to check if the field contents are empty."
See my answer.
"The field contents for Res_All_Meas(i) are zero before Res_all_Meas(i) is assigned a value."
Not in your example. What you showed has all fields of every structure element Res_All_Meas(1:999) containing empty numeric arrays, and the last element Res_All_Meas(1000) for which each field contains 0.
Answers (2)
Ameer Hamza
on 14 Oct 2020
2 Comments
Ameer Hamza
on 15 Oct 2020
You need to apply isempty on a particular field of a struct. Something like this
tf = ismpty(Res_All_Meas(1).ind)
See Also
Categories
Find more on Structures in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!