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object MeasureEntropy extends App {
val s = "measure measure here measure measure measure"
def entropyValue(s: String) = {
val m = s.split(" ").toList.groupBy((word: String) => word).mapValues(_.length.toDouble)
var result: Double = 0.0;
val len = s.split(" ").length;
m map {
case (key, value: Double) =>
{
var frequency: Double = value / len;
result -= frequency * (scala.math.log(frequency) / scala.math.log(2));
}
}
result;
}
println(entropyValue(s))
}
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