within_node: Execute code within a node

In multiplyr: Data Manipulation with Parallelism and Shared Memory Matrices

Description

This is the mainstay of parallel computation for a data frame. This will execute the specified expression within each node. Each node will have a persistent environment, so that variables created in that environment can be referred to by, for example, later calls to summarise. This environment contains active bindings to the columns of that data frame.

Usage

within_node(.self, expr)

Arguments

.self	Data frame
expr	Code to execute

See Also

Other data manipulations: mutate, nsa, reduce, summarise, transmute, within_group

multiplyr documentation built on May 30, 2017, 12:09 a.m.