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geosphere (version 1.3-13)

randomCoordinates: Random or regularly distributed coordinates on the globe

Description

randomCoordinates returns a 'uniform random sample' in the sense that the probability that a point is drawn from any region is equal to the area of that region divided by the area of the entire sphere. This would not happen if you took a random uniform sample of longitude and latitude, as the sample would be biased towards the poles. regularCoordiaates returns a set of coordinates that are regularly distributed on the globe.

Usage

randomCoordinates(n)
regularCoordinates(N)

Arguments

n
Sample size (number of points (coordinate pairs))
N
Number of 'parts' in which the earth is subdived )

Value

  • Matrix of lon/lat coordiantes

Examples

Run this code
randomCoordinates(3)
regularCoordinates(1)

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