[MAHOUT-1727] Elementwise analogues of scala.math functions for tensor types

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.2
• Assignee: Dmitriy Lyubimov
• Reporter: Dmitriy Lyubimov
• Created: 02/Jun/15 23:38
• Updated: 07/Aug/15 15:56
• Resolved: 17/Jun/15 18:59

Description

what we mean here:
log(5)
vlog(vec)
mlog(mxA)
dlog(drmA)

in R, all these variants are enacted by single function log. Unfortunately, we cannot overload standard functions since they are defined in another package and Scala would allow such an overload.

Hence, notation conventions:
vector functions are prepended by 'v': vlog, vabs...
in-core matrix functions are prepended by 'm': mlog, mabs...
DRM functions are prepended by 'd' (for distributed): dlog, dabs...

PR https://github.com/apache/mahout/pull/135