topic Re: k mean cluster vs proc rank in SAS Programming

k mean cluster vs proc rank

monster90 — Mon, 30 Jul 2018 12:11:15 GMT

Hi guys,

If I use proc rank with grouping function, what is the different between this method and the k mean clustering method?

Actually i do not see any other differentiation only that with using proc rank (with group) the procedure wants to divide the groups in equal part...

Thanks your answer,

Steve

Re: k mean cluster vs proc rank

mkeintz — Mon, 30 Jul 2018 13:51:25 GMT

I won't comment on k-means clustering method, but ...

proc rank cares about order, but not distance, however distance is defined. And of course this is associated with only permitting equal-size groups.
proc rank doesn't do multi-dimensional "clustering", however defined. I presume the clustering method does do multi-dimensional.

Re: k mean cluster vs proc rank

PaigeMiller — Mon, 30 Jul 2018 14:14:59 GMT

PROC RANK computes ranks on individual variables.

K-mean clusters finds groupings of observations in your data set using multiple variables.

These don't do the same things.