How to remove empty struct fields [ ] from a group a struct fields ?

174 views (last 30 days)
A: [1X1 struct] B: [1X1 struct] C: [1X1 struct] D: [ ] E: [ ] F: [ ] G: [ ] ,...................like this some structure are there. I want to remove those empty fields from that froup of fields.

Accepted Answer

Jos (10584)
Jos (10584) on 24 Nov 2017
Does this do what you want?
% create a structure with empty fields
S.A = 'x' ; S.B = [] ; S.C = 1:5 ;
fn = fieldnames(S)
tf = cellfun(@(c) isempty(S.(c)), fn)
S2 = rmfield(S, fn(tf))

More Answers (2)

sourav  malla
sourav malla on 26 Jun 2019
Edited: sourav malla on 26 Jun 2019
You can try like this:-
out = {t(~cellfun(@isempty,{t.places})).places};
t = cell2struct(out,{'places'},1);
  3 Comments
MSani
MSani on 27 Jun 2019
@Stephen Thank you very much! This worked like a charm :)
How I should I then save the file? As I noticed that when I clicked on the save button, it seems to change the way the file is saved and messed up the array structures in the file.

Sign in to comment.


Robert
Robert on 12 Jun 2020
% Create struct with empty fields.
s.a = 'notEmpty';
s.b = [];
s.c = '';
s.d = 12;
fields = fieldnames(s);
sOut = rmfield(s, fields(structfun(@isempty, s)));
sOut =
struct with fields:
a: 'notEmpty'
d: 12

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!