Radial (net) diagram
In contrast to the linear diagram, in the radial or mesh diagrams for more than two axles. For each of these datum from the origin at the center. For each type of received values creates its own axis, which comes from the center of the chart. Radial diagrams reminiscent of a grid or web, so sometimes they are called mesh. The advantage of radial diagrams in that they allow you to display simultaneously several independent variables that characterize the general condition of the structure of statistical aggregates. If the count does not produce from the center circle and the circle, then this figure will be called the spiral diagram.