r2_zeroinflated {performance} | R Documentation |
R2 for models with zero-inflation
Description
Calculates R2 for models with zero-inflation component, including mixed effects models.
Usage
r2_zeroinflated(model, method = c("default", "correlation"))
Arguments
model |
A model. |
method |
Indicates the method to calculate R2. See 'Details'. May be abbreviated. |
Details
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.
Value
For the default-method, a list with the R2 and adjusted R2 values.
For method = "correlation"
, a named numeric vector with the
correlation-based R2 value.
Examples
if (require("pscl")) {
data(bioChemists)
model <- zeroinfl(
art ~ fem + mar + kid5 + ment | kid5 + phd,
data = bioChemists
)
r2_zeroinflated(model)
}
[Package performance version 0.12.2 Index]