calipers: Matching priority function

Description Usage Arguments Value See Also Examples

View source: R/nearfar.R

Description

Updates given distance matrix to prioritize specified measured confounders in a pair match. Used in consort with matches function to prioritize specific measured confounders in a near-far match in the opt_nearfar function.

Usage

1
calipers(distmat, variable, tolerance = 0.2)

Arguments

distmat

An object of class distance matrix

variable

Named variable from list of measured confounders

tolerance

Penalty to apply to mismatched observations; values near 0 penalize mismatches more

Value

Returns an updated distance matrix

See Also

matches, opt_nearfar

Examples

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dd = mtcars[1:4, 2:3]
cc = calipers(distmat=smahal(dd), variable=dd$cyl, tolerance=0.2)
cc

nearfar documentation built on June 3, 2017, 1:02 a.m.

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