indexOfBestNotNaBy

internal inline fun <C> Sequence<C>.indexOfBestNotNaBy(isBetterThan: IsBetterThan<C & Any>): Int

Returns the index of the first element in this sequence that is not NA (null or NaN) and is better than all previous elements.

Returns -1 if there are no elements non-NA elements in this.

isBetterThan

A function defining what it means for a value to be "better" than another.