I have a basic question on the mechanics of fdim. I am calculating the information dimension of tree distributions. What I have are positions of trees within a plot (x data in one column, y data in another). My question is this: how does fdim combine the data from both columns to calculate the fractal dimension? Does it create an internal image of the points? I know it's basic, but I'm used to calculating dimensions of images, not datasets. I'm just a little skeptical of how the information dimension can be calculated from datasets instead of images. I've already attempted to send this e-mail to the package authors, but the e-mail addresses within the package no longer work. Thank you. Sincerely, Jim Milks Graduate Student Environmental Sciences Ph.D. Program Wright State University Dayton, OH 45435