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How to make certain elements of a matrix equal to one?

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James
James 2013-10-2
评论： Walter Roberson 2022-9-13
For example, if I had:
x = zeros(1,100)
and I wanted to make the 3rd, 5th, 67th, and 93rd element equal to one, how could I do this?

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Walter Roberson
Walter Roberson 2013-10-2
x([3, 5, 67, 93]) = 1;
  2 个评论
Moe Joe
Moe Joe 2022-9-12
But the problem in this solution the newly generated vector will be with 93 elements, so how to keep the new-x as 100 elements after the solution?
Walter Roberson
Walter Roberson 2022-9-13
No, with that code, the size of x will not change unless it had fewer than 93 elements. But the user said that x = zeros(1,100) so we know that it already exists with 100 elements.

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