ddo: Instantiate a Distributed Data Object ('ddo')

In datadr: Divide and Recombine for Large, Complex Data

Description

Instantiate a distributed data object ('ddo')

Usage

ddo(conn, update = FALSE, reset = FALSE, control = NULL, verbose = TRUE)

Arguments

conn	an object pointing to where data is or will be stored for the 'ddf' object - can be a 'kvConnection' object created from localDiskConn or hdfsConn, or a data frame or list of key-value pairs
update	should the attributes of this object be updated? See updateAttributes for more details.
reset	should all persistent metadata about this object be removed and the object created from scratch? This setting does not effect data stored in the connection location.
control	parameters specifying how the backend should handle things if attributes are updated (most-likely parameters to rhwatch in RHIPE) - see rhipeControl and localDiskControl
verbose	logical - print messages about what is being done

Examples

kv <- kvPairs(kvPair(1, letters), kvPair(2, rnorm(100)))
kvddo <- ddo(kv)
kvddo

datadr documentation built on May 1, 2019, 8:06 p.m.