Can I count the number of integers in an index and store it in a variable?

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index = find([X] == 1)
If I have an array X and I use index to find the where the value 1 is in the array and it gives me the following output that there are 2 places where the number 1 is found at spot [3;25]
index =
3
25
Can I store the value 2 in a variable that it found 2 integers?
  1 comentario
Stephen23
Stephen23 el 17 de Sept. de 2017
The find is not required (logical indexing is often much more efficient than using find) The square brackets are also not needed.
nnz(X==1)

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Star Strider
Star Strider el 16 de Sept. de 2017
Yes.
Xeq1 = numel(index);
This is how I would do it.

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