x
|
a vector of positive quantities.
The values in x are displayed as the areas of pie slices.
|
labels
|
a vector of character strings giving names for
the slices.
|
shadow
|
a logical vector indicating whether a shadow
effect should be attempted for the chart.
This only makes sense if the slices are filled with colors.
|
edges
|
the circular outline of the pie is approximated by a
polygon with this many edges.
|
radius
|
the pie is drawn centered in a square box
whose sides range from -1 to 1.
If the character strings labeling the slices are long it
may be necessary to use a smaller radius.
|
col
|
a vector of colors to be used in filling
the slices.
|
main
|
an overall title for the plot.
|
...
|
graphical parameters can be given as arguments to piechart .
|