Area plot.


geom_area(mapping = NULL, data = NULL, stat = "identity", position = "stack", na.rm = FALSE, 


The aesthetic mapping, usually constructed with aes or aes_string. Only needs to be set at the layer level if you are overriding the plot defaults.
A layer specific dataset - only needed if you want to override the plot defaults.
The statistical transformation to use on the data for this layer.
The position adjustment to use for overlappling points on this layer
If FALSE (the default), removes missing values with a warning. If TRUE silently removes missing values.
other arguments passed on to layer. This can include aesthetics whose values you want to set, not map. See layer for more details.


An area plot is the continuous analog of a stacked bar chart (see geom_bar), and can be used to show how composition of the whole varies over the range of x. Choosing the order in which different components is stacked is very important, as it becomes increasing hard to see the individual pattern as you move up the stack.


An area plot is a special case of geom_ribbon, where the minimum of the range is fixed to 0, and the position adjustment defaults to position_stacked.


# see geom_ribbon