Clear all fields of a struct
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Hi,
I have a struct with a number of fields that I want populate, and then store, each iteration through a loop. I want the struct to be empty and available each iteration. Is there a function to clear all the fields? Or do I just declare the whole thing again?
I tried setting each feild individually to [], like
myStruct.a = [];
myStruct.b = [];
But it's actually faster to declare the whole thing new each iteration, as in:
myStruct = struct('a', [], 'b', []);
Or maybe there's a better approach all together?
Cheers, Karl
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Accepted Answer
Karl
on 26 Mar 2014
1 Comment
Azzi Abdelmalek
on 26 Mar 2014
clearing your variable doesn't make your code faster, maybe you need to pre-allocate
myStruct = structfun(@(x) zeros(1,100), myStruct, 'UniformOutput', false);
More Answers (1)
Azzi Abdelmalek
on 26 Mar 2014
Edited: Azzi Abdelmalek
on 26 Mar 2014
%example
a.b=1
a.c=2
a.d=3
%----------------
f=fields(a)
for k=1:numel(f)
a.(f{k})=[];
end
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