rmfield / clear structur entry ?
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hey Guys, I have got a 1xn structure. Now i just want to write a code which can delete on column of a structure. For example:
A is structure with A.x / A.y /A.z This is a 1x5 structure. Now I want to make this a 1x4 structure by deleting the 3rd Column. So A(3) is gone and A(4) is now the new A(3) / A(5) is the new A(4)
回答（1 个）
Azzi Abdelmalek
2014-9-12
A=struct('x',num2cell(rand(1,5)),'y',num2cell(rand(1,5)),'z',num2cell(rand(1,5)))
A(3)=[]
5 个评论
Max Müller
2014-9-12
编辑：Max Müller
2014-9-12
Pierre Benoit
2014-9-12
编辑：Pierre Benoit
2014-9-12
It may not work because each time you set A(u) to 0, the length of A will reduce, so you will exceed matrix dimensions at some point.
Try this :
Check = [A.UsedAmp] + [A.OptimalAmp] + [A.ClosestAmp];
A(Check == 0) = [];
If it's still doesn't work, it may be that you didn't define your condition correctly.
Max Müller
2014-9-12
Azzi Abdelmalek
2014-9-12
A=struct('UsedAmp',num2cell([1 2 3 4 5]),'OptimalAmp',num2cell([-1 2 3 4 -3]),'ClosestAmp',num2cell([0 2 3 4 -2]))
idx=[];
for u = 1:numel(A)
Check = A(u).UsedAmp + A(u).OptimalAmp + A(u).ClosestAmp;
if Check == 0;
idx(end+1)=u
end
end
A(idx)=[]
Azzi Abdelmalek
2014-9-12
编辑：Azzi Abdelmalek
2014-9-12
Or
A=struct('UsedAmp',num2cell([1 2 3 4 5]),'OptimalAmp',num2cell([-1 2 3 4 -3]),'ClosestAmp',num2cell([0 2 3 4 -2]))
A(squeeze(sum(cell2mat(struct2cell(A))))==0)=[]
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2014-9-12
2014-9-12
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