how to do subtraction inside Structure

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tabw
tabw on 13 Aug 2014
Commented: Azzi Abdelmalek on 14 Aug 2014
1xN Structure call Structure.result Structure(1).result=1x5 Array ,[ 1 2 3 4 5]
Structure(2).result=1x7 Array,[1 2 3 4 5 6 7]
How to do Structure(2).result -Structure(1).result
I mean Every element inside Structure(2) - every structure inside Structure(1)
I tried
Structure(2).result(1:7) - Structure(1).result(1:5)
But it won't work.
Is it a must to write a loop? like
for i=1:5
Structure(2).result(1:7) - Structure(1).result(i)
end
Actually, what I want to do is that
1xN Structure call Structure.result
for i= 1:N
Structure(i).result=1x5 Array ,[ 1 2 3 4 5]
I want to find every array contained inside the structure - every array there EG (Structure(1).result=1x5 Array ,[ 1 2 3 4 5]-
Structure(i).result=1x7 Array,[1 2 3 4 5 6 7])
and find the any number == 10;
if number =10
combine Struct(1)and Struct (2)into New structure
and use the New struct to do the substraction

Answers (2)

Azzi Abdelmalek
Azzi Abdelmalek on 13 Aug 2014
Edited: Azzi Abdelmalek on 13 Aug 2014
Edit
a=struct('result',{1:5,1:7})
b=struct('result',num2cell(bsxfun(@minus,a(1).result',a(2).result)))
  1 Comment
tabw
tabw on 13 Aug 2014
Thank you so much.You are really good at matlab.

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Pratik Bajaria
Pratik Bajaria on 13 Aug 2014
Well Technically its not possible. You are trying to subtract 1x5 from 1x7 array, which is violation of dimensionality. As a workaround, what you can do is the idea of padding dummy numbers like zeros to 1x5 and make it a 1x7 array/vector and then probably subtraction should work. I hope this helps.
Please let me know in case of further doubts.
Regards, Pratik
  3 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 14 Aug 2014
Patrick, padding with zeros is not what Tabw is asking for, and our solutions are completely different.

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