Calculates R2 for models with zero-inflation component, including mixed effects models.
r2_zeroinflated(model, method = c("default", "correlation"))
Indicates the method to calculate R2. See 'Details'. May be abbreviated.
For the default-method, a list with the R2 and adjusted R2 values.
method = "correlation", a named numeric vector with the
correlation-based R2 value.
The default-method calculates an R2 value based on the residual
variance divided by the total variance. For
method = "correlation",
R2 is a correlation-based measure, which is rather crude. It simply computes
the squared correlation between the model's actual and predicted response.