Revision history [back]
 | 1 | initial version |
In ggplot2, the limit breaks for the legend guides and y-axis labels for polar coordinates get removed when the plot is created using the coord_polar() function. When polar coordinates are used, the y-axis is transformed into an angle axis, and the legend guides and y-axis labels are no longer applicable. Therefore, ggplot2 removes them by default to avoid confusion in the plot.