Subtracting specific places in vector using diff

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sani 2021년 5월 9일
댓글: sani 2021년 5월 10일
Hi, I'm using the function diff to subtract elements in a vector. I read the docomentation and I don't think I get it well and hopefuly someone can explein it to me. can I use the diff function to subtrat between the enen places with the odd olace before it (x(2)-x(1),x(4)-x(3) and so on)? 1- is it possible? 2 - what does diff(X,n) does exactly? thanks

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Matt J
Matt J 2021년 5월 9일
편집: Matt J 2021년 5월 9일
1- Not with |diff(). If you wanted to do that, it would be
2. diff(X,n) approsimates the n-th derivative of X using finite differences.

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