For a general presentation of using R and lessR, including examples of bar charts, select one or both of the following sources.
R session, enter browseVignettes("lessR"), then select the Bar Chart, Pie Chart vignetteR session, enter ?PieChart to access the manual that describes the PieChart() functionlessR do permit more sensitivity to differentiate among objects with various types of color blindness: Okabe-Ito and viridis. These are qualitative palettes, which means that the hue varies across the plotted objects, here slices of a pie. Specify these, or other palettes, as the value for the fill parameter, available both by entering a function call in the R console or via the interactive analysis.
For the full list of PieChart) parameters, see the manual obtained by entering ?PieChart. These listed parameters are those provided in the interactive session from interact("PieChart").
0 (none) to 1 (completely transparent)0 (none) up to 1 (no plot, nothing left)