Is there a function where the inputs are indices and the outputs are vectors with a value of 1 of that index and the remainder?

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Danny 2020-2-20

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回答： Siriniharika Katukam 2020-2-25

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I am finding a function (named func, here).

If I type the following code

y = func(10, [3, 5, 1]);

then I get the following result

y = [1; 0; 1; 0; 1; 0; 0; 0; 0; 0];

The vector y is a vector with size of 10 by 1, in which the third, fifth, and first elements are one, but the rest are all zero.

Actually, I am using now the following code:

a = [3, 5, 1];
y = zeros(10,1);
y(a) = 1;

I want to use an internal function!!

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Walter Roberson 2020-2-20

You can construct expressions that create it without an explicit temporary variable, but they will be longer and less efficient than what you have now.

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Answer 1

Siriniharika Katukam 2020-2-25

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The procedure you followed seems to be a better way of doing it.

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Is there a function where the inputs are indices and the outputs are vectors with a value of 1 of that index and the remainder?

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Is there a function where the inputs are indices and the outputs are vectors with a value of 1 of that index and the remainder?

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