Converts input of type Any to Double.
Converts input of type Any to Double. Does this by casting to java.lang.Number, and then taking the double value.
Will return Double.NaN in the case of bad input.
input to be converted to Double.
Double representation of the number, or Double.NaN if impossible.
Index of the dependent column in the column set.
Indices of the independent columns.
Function mapping a Row of the correct schema to a labelled point.
Helper functions that are useful for working with MLlib.