SimpleReduce-class: Implementation for a reducible function using function names...
In clarkfitzg/makeParallel: Transform Serial R Code into Parallel R Code

Description Slots

This assumes that all of the summary, combine and query functions are defined and available in the R environment where it will run. See UserDefinedReduce to define and use your own functions.

summary: name of a function that each worker will call on their chunk of the data. This produces an intermediate result.
combine: name of a function to combine many intermediate results into a single intermediate results
query: name of a function to produce the actual final result from an intermediate result