Rsquared {sjSDM}

R-squared

Description

calculate R-squared following McFadden or Nagelkerke

Usage

Rsquared(model, method = c("McFadden", "Nagelkerke"))

Arguments

model

model

method

McFadden or Nagelkerke

Details

Calculate R-squared following Nagelkerke or McFadden:

• Nagelkerke: \(R^2 = 1 - \exp(2/N \cdot (log\mathcal{L}_0 - log\mathcal{L}_1 ) )\)

• McFadden: \(R^2 = 1 - log\mathcal{L}_1 / log\mathcal{L}_0 \)

Value

R-squared as numeric value

Author(s)

Maximilian Pichler