The Polar diagram option displays a circle divided evenly into segments. Each spoke (edge) between two segments represents a row or column value. Each value is given as the distance from the center of the circle to a point along the spoke. The largest value extends all the way to the circumference, and lesser values are calculated as fractions of the largest.
The points from spoke to spoke are connected, and the areas thus created are color-filled.
If you turn on the Percentages option (described in "Percentages," in the section "Other Options"), the Polar diagram graph type is identical to the Relative Polar graph type (see the following figure).
A single circle can contain a maximum of 32 values. Negative values are not possible for this graph type.
Select Options® 2D options to call up the 2D Options dialog window and choose the graph type.