Question: How to work this formula in java? please share just the application of this formula using java preferably. Entropy value for any decision tree leaf

How to work this formula in java? please share just the application of this formula using java preferably.

Entropy value for any decision tree leaf node that has only two types of objects in it. The formula for the entropy value is : Entropy =-1 * ((P(Type I objects)) * log2(P(Type I objects)) + (P(Type II objects)) * log2(P(Type II objects))) The log2(n) is a negative number for probabilities, so that is the reason for multiplying the whole thing by -1. The log2(n) may be easy or difficult to find in any particular programming language. See the note below for a Java solution. Entropy value for any decision tree leaf node that has only two types of objects in it. The formula for the entropy value is : Entropy =-1 * ((P(Type I objects)) * log2(P(Type I objects)) + (P(Type II objects)) * log2(P(Type II objects))) The log2(n) is a negative number for probabilities, so that is the reason for multiplying the whole thing by -1. The log2(n) may be easy or difficult to find in any particular programming language. See the note below for a Java solution

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