true_neg: true_neg simple method to calculate true negative rate...

In AndySouth/climcropr: Simple Crop Modelling at a Global Scale

Description

treats cells that are 0 in both layers as true negative

Usage

true_neg(obs, pred)

Arguments

obs	raster of observed values
pred	raster of predicted values

Value

true negative rate between 0 & 1

Examples

crop <- 'maize'
obs <- raster::subset(st,paste0(crop,'_mirca'))
pred <- raster::subset(st,paste0(crop,'_suitsimp'))
tneg <- true_neg(obs=obs, pred=pred)

AndySouth/climcropr documentation built on May 20, 2019, 5:08 p.m.