getDists: getDists

In mespe/Rcimis: R interface to the CIMIS (California Irrigation Management System) REST API

Description

Get geographic distance to nearest CIMIS stations

Usage

getDists(lat, lon, n = 1, FUN = distHaversine, cached = TRUE,
  StnInfo = getStationInfo(cached))

Arguments

lat	The latitude, in decimal degrees
lon	longitude, in decimal degrees
n	number of nearest stations to return
FUN	the function used to calculate the distance. Passed to the distm function in the geospheres package
cached	logical, should the cached station information be used, or should a up to the date version be retrieved from CIMIS
StnInfo	object providing details of the CIMIS weather stations. This can be retrieved using getStationInfo or updateStationInfo.

Details

This function gets the nearest n stations from a geographic point.

Value

a subset of StnInfo ordered by distance to the specificed point, with the distance in Km added

Author(s)

Matt Espe

Examples

#Get the 5 closest stations
getDists(37.8, -121.22, n = 5)

mespe/Rcimis documentation built on May 22, 2019, 6:53 p.m.