distcalc: distcalc
In darcyj/specificity: Calculate Environmental or Host Phylogenetic Specificity

distcalc

R Documentation

distcalc

Description

Calculates pairwise geographic distance between locations on earth. Just a convenient wrapper for fields::rdist.earth().

Usage

distcalc(lat, lng, sampIDs = NULL)

Arguments

`lat`	Numeric vector. Latitudes in decimal degree format.
`lng`	Numeric vector. Longitudes in decimal degree format.
`sampIDs`	Character vector. Sample identifiers. Only required if output dist should have names associated.

Value

matrix containing all pairwise geographic distances in km.

Author(s)

John L. Darcy

Examples

# library(specificity)
# attach(endophyte)
# geo_dists <- distcalc(metadata$Lat, metadata$Lon, metadata$SampleID)
# all(rownames(geo_dists) == metadata$SampleID)

darcyj/specificity documentation built on Aug. 1, 2023, 8 a.m.