get_dist_mat: Get the distance matrix
In spew: SPEW Framework for Generating Synthetic Ecosystems

Get the distance matrix between two data frames that have "longitude" and "latitude" columns

1	get_dist_mat(pop, places, dist_fxn = haversine_dist)

`pop`	data frame of the population with m rows
`places`	data frame of places to assign with n rows
`dist_fxn`	currently "haversine" with args for x1, y1, x2, y2, returning a scalar value between 0 and 1

m x n matrix with scaled distance between 0 and 1. Eg. Entry ij means that the scaled distance between row i from pop and row j from places is entry ij.

spew documentation built on Nov. 17, 2017, 7:36 a.m.