evaluate: Model evaluation

In ani-ghosh/luna_dev: Satellite Remote Sensing (Earth Observation) data analysis

Description

Get model evaluation statistics from a confusion matrix.

Usage

evaluate(cmat, stat)

Arguments

cmat	confusion matrix. Normally created with table (see examples)
stat	character. Either "overall" (overall accuracy), "kappa", "class" for user and producer accuracy

Value

numeric

Examples

  
classes <- c("forest", "water", "urban", "agriculture")
set.seed(1)
observed <- sample(classes, 100, replace=TRUE)
predicted <- observed
i <- seq(1,100,2)
predicted[i] <- sample(classes, length(i), replace=TRUE)
conmat <- table(observed, predicted)
conmat

evaluate(conmat, "kappa")
evaluate(conmat, "producer")

ani-ghosh/luna_dev documentation built on Nov. 18, 2019, 12:02 a.m.