public static long mean( long[] values, final int start, final int length ) {
        return (long) Math.round(meanDouble(values, start, length));
    }
public static long mean( long[] values, final int start, final int length ) {
        return (long) Math.round(meanDouble(values, start, length));
    }
public static long mean ( long [ ] values , final int start , final int length ) { return ( long ) Math . round ( meanDouble ( values , start , length ) ) ; }
Average
@param values values in int
@return average
Average