Clojurians Log v2

In attempting to come up with core.matrix indexing idioms analogous (or equivalent) to various examples from something like numpy, I came across

index

index-seq

select

slice

submatrix

Another question, with vector 'index args', why does select not perform typical integer indexing? For example, with (def a (m/matrix [[1,2], [3, 4], [5, 6]])) why doesn't (select a [0 1 2] [0 1 0]) return [1.0,4.0,5.0] instead of [[1.0,2.0,1.0],[3.0,4.0,3.0],[5.0,6.0,5.0]]. I don't really understand the point behind the latter.