coordinates2statistics: Coverts latitude and longitude coordinates to statistical...

In RDSTK: An R wrapper for the Data Science Toolkit API

Description

A function to return characteristics like population density, elevation, climate, ethnic makeup, and other statistics for points all around the world at a 1km-squared or finer resolution.

Usage

coordinates2statistics(latitude, longitude, statistic, session=getCurlHandle())

Arguments

latitude	The latitude (numeric) of the point you wish to reference.
longitude	The longitude (numeric) of the point you wish to reference.
statistic	The name of the statistic you want, eg "population_density" - see the DSTK docs for a full list.
session	This is the CURLHandle object giving the structure for the options and that will process the command. For curlMultiPerform, this is an object of class code MultiCURLHandle-class.

Value

Returns a data.frame containing

value	A number or array of numbers representing the value at this point.
description	A human-readable description of what the value means.
source	Where the data originally came from.
units	Optional - what units the value is measured in.
index	Optional - if the value is actually an enumerated string (ie for the land cover type) this is the numerical index.
proportion_of	If the value is proportional (eg the percentage of residents who are below the poverty level) this gives the name of the statistic that it's a proportion of.

Author(s)

Ryan Elmore

References

http://www.datasciencetoolkit.org/developerdocs#coordinates2statistics

See Also

getURL, getCurlHandle

Examples

	## Not run: 
		coordinates2statistics(37.769456, -122.429128, 'population_density')
	
## End(Not run)

RDSTK documentation built on May 2, 2019, 6:49 a.m.