plot.trends: Make nutrient trends map function

In isaacbain/spatinz: Set Of Functions For Working With NZ Spatial Data

Description

This function allows you to plot nutrient trends data on ggplot maps.

Usage

plot.trends(pt_dat, coastline = spatinz::coastline)

Arguments

pt_dat	Expects input of a point shapefile, in either WGS84 or NZTM.
coastline	Expects input of a coastline shapefile, defaults to NZ topo coastline.

Details

You can either use included nutrient data or supply your own point data in shapefile format. Similarly you can either use the default included coastline of New Zealand or supply your own polygon in shapefile format.

Included data:

• tp = Total phosphorus

• drp = Dissovled reactive phosphorus

• nn = Nitrate nitrogen

• tn = Total nitrogen

• an = ammoniacal nitrogen

Examples

plot.trends(tp)
plot.trends(drp) + ggplot2::labs(title = "Dissolved reactive phosphorus")

isaacbain/spatinz documentation built on May 23, 2019, 7:33 a.m.