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I have imbalance dataset for binary classification problem. I want to create a custom cost function that takes into account not only the actual class and probability, but another variable "premium amount" which is a feature in the model.

I have studied few blogs but it doesn't talk about including feature in cost function.

Kindly help!

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    $\begingroup$ I think you can just include this feature in whichever way you want in the cost function, for example f = error * premium_feature would use the feature as weight. $\endgroup$
    – Erwan
    Feb 19 at 10:28

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