addIslands.sp: Adding new islands to global islands dataset

In mrhelmus/ieco: Functions used to perform integratice ecology research

Description

This function adds new islands to the global island dataset, and assigns unique numeric IDs to the new islands based off the ID system of the old islands.

Usage

addIslands.sp(newIslands, currentIslands, polys)

Arguments

newIslands	Data frame of new islands, with a row for each new island. Must have columns called 'lat' and 'long' but no other requirements.
currentIslands	SpatialPolygonsDataFrame of current global island dataset. MUST have numeric ID column in attributes named 'uniqueID'. Unprojected lat/long.
polys	SpatialPolygonsDataFrame of all land on earth (GADM shapefile, for example). Unprojected lat/long.

Value

Returns spatialPolygonsDataFrame of newIslands. This SPDF can be merged with currentIslands easily using rbind if the columns are the same...see newCurrentIslands <- rbind(currentIslands, polys2add, makeUniqueIDs = T)

Author(s)

Tyler J Tran, [e-mail]

mrhelmus/ieco documentation built on May 23, 2019, 7:37 a.m.