K nearest neighbors in Mathcad - what functions I can use?

Question

I found the k nearest neighbours Mathcad implementation in M. Nixon's book but 'distance' and 'coord' functions don't work. How can I fix it? mathcad implementation

Answer 1

coord return position of minimal value in the dist. This function could be like that

distance - Hmm, I think that is something wrong here

because it should be something like that

or some other distance between test and i element from the data