Describe the workflow you want to enable
The Gini index metric (that is based on Lorenz curve) is widely used in the insurance industry for evaluating the performance (ranking power) of various risk models.
Describe your proposed solution
2 sklearn examples already includes code for calculating the gini index metric here and here
Related to #28534
Describe alternatives you've considered, if relevant
No response
Additional context
No response
Describe the workflow you want to enable
The Gini index metric (that is based on Lorenz curve) is widely used in the insurance industry for evaluating the performance (ranking power) of various risk models.
Describe your proposed solution
2 sklearn examples already includes code for calculating the gini index metric here and here
Related to #28534
Describe alternatives you've considered, if relevant
No response
Additional context
No response