Abstract:Ripley‘s K(d) function is an important analysis tool for study of population spatial pattern, and method of edge correction is a key part of the tool. Traditionally, there are three cases which the edge correction need to be done: (i) the circle is entirely contained in the plot; (ii) the circle intersects the plot on one side; (iii) the circle intersects two boundaries of the plot with two or three points. However, there exits still another case that the circle intersects two boundaries of the plot with fo...