Rfeature requesthelp wanted
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描述
Problem: I found documentation for defining a custom metric function in python from:https://tech.yandex.com/catboost/doc/dg/concepts/python-usages-examples-docpage/#custom-loss-function-eval-metric But is there a way to do this in R and how should the function be defined?
catboost version: 0.8 Operating System: Windows 10 CPU: i5-2500k