geth: Returns the derivation history of an edit matrix or array

In editrules: Parsing, Applying, and Manipulating Data Cleaning Rules

Description

Function eliminate tracks the history of edits in a logical array H. H has nrow(E) rows and the number of columns is the number of edits in the editmatrix as it was first defined. If H[i,j1], H[i,j2],...,H[i,jn] are TRUE, then E[i,] is some (positive, linear) combination of original edits E[j1,], E[j2,],...,E[jn,]

h records the number of variables eliminated from E by eliminate

Usage

getH(E)

geth(E)

Arguments

E	editmatrix

Details

Attributes H and h are used to detect redundant derived edits.

See Also

editmatrix, eliminate

editmatrix, eliminate

editrules documentation built on May 1, 2019, 6:32 p.m.