Regression measure defined as Kendall's rank correlation coefficient between truth and response. Calls stats::cor() with method set to "kendall".

## Note

The score function calls mlr3measures::ktau() from package mlr3measures.

If the measure is undefined for the input, NaN is returned. This can be customized by setting the field na_value.

## Dictionary

This Measure can be instantiated via the dictionary mlr_measures or with the associated sugar function msr():

mlr_measures\$get("ktau")
msr("ktau")

## Meta Information

• Type: "regr"

• Range: $$[-1, 1]$$

• Minimize: FALSE

• Required prediction: response