Simple for loop index

Question

0 个投票

Hi,

Here is a simple piece of code to find the location of elements n within the vector A

 A=[2,4,6,7,9];
 for n=[4,9];
   x=find(n==A);
 end

However x only gives me the last location, i.e. 5, whereas I want the whole list of locations, i.e. [2,9] Thanks

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Answer 1

Torsten 2015-12-10

0 个投票

A=[2,4,6,7,9];
index=1;
for n=[4,9]
  x(index)=find(n==A);
  index=index+1;
end

Best wishes

Torsten.

Dirk 2015-12-10

Why does this not work with when a decimal is present (for example in A)?

 A=[2,4.4,6,7,9];
index=1;
for n=[4,9]
  x(index)=find(n==A);
  index=index+1;
  y=A(x);
end

Torsten 2015-12-11

A=[2,4.4,6,7,9];
index=1;
for n=[4,9]
  k=find(n==A);
  x{index}=k;
  y{index}=A(k);
  index=index+1;
end

Best wishes

Torsten.