r - different 'apply' methods in RHive API -


rhive api contains 5 'apply' functions:

rhive.napply rhive.sapply rhive.mrapply rhive.mapapply rhive.reduceapply

unfortunately, rhive manual not provide description

what difference between them?

please, ...

i found partial answer in brilliant manual:

http://www.slideshare.net/miloveme/r-hive-introduction   • napply : r apply function numeric type • sapply : r apply function string type

also, went rhive source code here: 

https://github.com/nexr/rhive/blob/master/rhive/r/rhive.r#l76

i found, rhive.mapapply , rhive.reduceapply call rhive.mrapply inside.

rhive.mrapply generic function map-reduce applying, , rhive.mapapply/reduceapply "syntactic sugar"

examples of rhive.mapapply usage here:

https://github.com/nexr/rhive/blob/master/rhive/inst/unittests/runit-rhive.script.r

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