distance_to_nearest-methods: Compute distance to nearest position in a set of intervals

Description Usage Arguments Value Note See Also Examples

Description

For each point or interval in the from argument, compute the distance to the nearest position in the to argument.

Usage

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## S4 method for signature 
## 'Intervals_virtual_or_numeric,Intervals_virtual_or_numeric'
distance_to_nearest(from, to, check_valid = TRUE)

Arguments

from

An object of appropriate type.

to

An object of appropriate type.

check_valid

Should validObject be called before passing to compiled code? Also see interval_overlap.

Value

A vector of distances, with one entry per point or interval in from. Any intervals in from which are either empty (see empty) or have NA endpoints produce a NA result.

Note

This function is now just a wrapper for which_nearest.

See Also

See which_nearest, which also returns indices for the interval or intervals (in case of ties) at the distance reported.

Examples

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# Point to interval

to <- Intervals( c(0,5,3,Inf) )
from <- -5:10
plot( from, distance_to_nearest( from, to ), type = "l" ) 
segments( to[,1], 1, pmin(to[,2], par("usr")[2]), 1, col = "red" )

# Interval to interval

from <- Intervals( c(-Inf,-Inf,3.5,-1,1,4) )
distance_to_nearest( from, to )


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