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Hi, I am using the densCols to draw a high volume scatter plot. Instead of using the default local density, I would like to take log of the local density and then map them to the colors. I could not figure out how to do that. For example: plot(x,y,col=densCols(x,y,"log")) ? Any help would be appreciated! Jiaxiu [[alternative HTML version deleted]]

...destinations: xHTML and TeX). In fact: I does have something that works for basic objects, entirely done with S4 classes, with the results visible at: http://www.stat.ucl.ac.be/ROMA/sample.htm http://www.stat.ucl.ac.be/ROMA/sample.pdf To achieve this goal, I do use intermediary objects that would reprensent the structure of the output. Thus I defined classes for Vector, Tables, Rows, Cells, Sections, and so on. Most of those structure are recursive. Then, at a firts attemps, a matrix would be represented as a Table containing Rows containg Cells containing Vectors, which finally is easy to export...