date_near: Find Nearest Date within Threshold

In Ajfrick/AVRCHelp: Assistance for AVRC/PIRC Data

Description

Searches through vector of Dates for nearest match using given criteria according to function arguments.

sidepref must be filled in as 'l' or 'r' to receieve consistent results If sidepref is missing date_near will return one at random

Usage

date_near(dates, target, thresh = Inf, onlypre = F, sidepref,
  quiet = T)

Arguments

dates	vector of Date objects to search through
target	Date object to find nearest match
thresh	numeric value for threshold for maximum number of days between match
onlypre	logical for right censor of dates
sidepref	character for decision in case left and right side both have minimum distance

Value

Date object representing closest match to target Date object

Examples

x = seq.Date(from = as.Date("2010-01-01"), to = as.Date("2012-01-01"), length.out = 30)
y = as.Date("2011-01-01")
date_near(x,y, sidepref = 'l')
date_near(x,y, sidepref = 'r')
date_near(x,y, thresh = 1)
date_near(x,"2011-01-12", onlypre = T)

Ajfrick/AVRCHelp documentation built on May 28, 2019, 1:34 a.m.