Method Detail

• getZ

  Number getZ(int series,
              int item)

  Returns the z-value for the specified series and item.

  Parameters:

  series - the series index (zero-based).

  item - the item index (zero-based).

  Returns:

  The z-value (possibly null).

• getZValue

  double getZValue(int series,
                   int item)

  Returns the z-value (as a double primitive) for an item within a series.

  Parameters:

  series - the series (zero-based index).

  item - the item (zero-based index).

  Returns:

  The z-value.