Utility Functions to Execute Standard Extract/Transform/Load Operations (using Package 'ff') on Large Data

Documentation for package ‘ETLUtils’ version 1.5

ETLUtils-package	Extra utility functions to execute standard ETL operations on large data
ETLUtils	Extra utility functions to execute standard ETL operations on large data
factorise	Put character vectors, columns of a data.frame or list elements as factor
factorise.character	Put character vectors, columns of a data.frame or list elements as factor
factorise.data.frame	Put character vectors, columns of a data.frame or list elements as factor
factorise.default	Put character vectors, columns of a data.frame or list elements as factor
factorise.list	Put character vectors, columns of a data.frame or list elements as factor
matchmerge	Merge two data frames (fast) by common columns by performing a left (outer) join or an inner join.
naLOCFPlusone	Performs NA replacement by last observation carried forward but adds 1 to the last observation carried forward.
read.dbi.ffdf	Read data from a DBI connection into an ffdf.
read.jdbc.ffdf	Read data from a JDBC connection into an ffdf.
read.odbc.ffdf	Read data from a ODBC connection into an ffdf.
recoder	Recodes the values of a character vector
renameColumns	Renames variables in a data frame.
write.dbi.ffdf	Write ffdf data to a database table by using a DBI connection.
write.jdbc.ffdf	Write ffdf data to a database table by using a JDBC connection.
write.odbc.ffdf	Write ffdf data to a database table by using a ODBC connection.