How I manually write a function for computing set intersection? (partial code)

Question

Tyler Johnson 2016-9-7

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/302313-how-i-manually-write-a-function-for-computing-set-intersection-partial-code

回答： KSSV 2016-9-8

I am trying to manually write the intersect function that takes two sets and produces the values that are the same within both. for example: {a, b, c} and {a, b, g} should produce a, b. However when I run my code I am just getting a set full of commas as output like this: { , , , , , , , ,}. My code is as follows:

function result = TylerJohnsonIntersect(set1, set2)
uset1 = unique(set1);
uset2 = unique(set2);
for i = 1:length(uset1)
  for j = 1:length(uset2)
      if uset1{i} == uset2{j}
          set3{i} = i;
      end
  end
end
result = set3;
end

Can anyone point me in the right direction?

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Answer 1

KSSV 2016-9-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/302313-how-i-manually-write-a-function-for-computing-set-intersection-partial-code#answer_234146

在 MATLAB Online 中打开

How about this?

function result = TylerJohnsonIntersect(set1, set2)
uset1 = unique(set1);
uset2 = unique(set2);
for i = 1:length(uset1)
  for j = 1:length(uset2)
      if uset1{i} == uset2{j}
          set3(i) = i;
      end
  end
end
result = set1(set3);