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##### 15.4.5.2 Area Series

Area series objects are created by the `area` function. Each of the `hggroup` elements contains a single patch object. The properties of the area series are

`basevalue`
  The value where the base of the area plot is drawn.
`linewidth`
`linestyle`
  The line width and style of the edge of the patch objects making up the areas. See Line Styles.
`edgecolor`
`facecolor`
  The line and fill color of the patch objects making up the areas. See Colors.
`xdata`
`ydata`
  The x and y coordinates of the original columns of the data passed to `area` prior to the cumulative summation used in the `area` function.
`xdatasource`
`ydatasource`
  Data source variables.