If it is any help, here is the log analyzer project I had started working on. It is in c#, but many of the concepts would apply.
Most of it is probably junk, but there is at least an example of bilinear interpolation in Base3DTable.cs and some form of StatisticsTable in StatisticsTable.cs.
I was working on this because (1)wanted some practice coding and (2)wanted to be able to analyze my log files. I doubt I'm even halfway done and there are many areas where this is just complete junk, but I'll throw it out here in case it is of even the slightest use

:):)
I have very little in the way of free time these days, but I would like to contribute a bit here and there if I can manage it. I guess I'll take a look around this site to try and find some work to do if I come up with some free time.