nearest.to: Select the nearest point in an array to a given value

In NCmisc: Miscellaneous Functions for Creating Adaptive Functions and Scripts

Select the nearest point in an array to a given value

Description

Similar to the base function match() but allows for data where you won't find an exact match. Selects the nearest value from 'array' to the value 'point'. Sometimes there are multiple points with equal distance in which case choose from 3 possible 'dispute.method's for choosing which of the equidistant array values to index. returns the index of 'array' to which 'point' is nearest.

Usage

nearest.to(array, point, dispute.method = c("first", "last", "random"))

Arguments

array	a numeric vector or POSIXct vector of date-times.
point	the value that you want to find the nearest point to.
dispute.method	when there are equidistant values to 'point' in array, choose either the first, last, or a random select, based on the original order in 'array.

Value

index value of the nearest point in 'array'.

Author(s)

Nicholas Cooper [e-mail]

Examples

myArray <- 1:100
nearest.to(myArray, 7.7)
nearest.to(myArray, 50.5)
nearest.to(myArray, 50.5, dispute.method="last")

NCmisc documentation built on Oct. 17, 2022, 5:09 p.m.