I just wrote up an extensive example using PL/R to build a logistic map for a range of values of r. The end result is a pretty picture generated within the database and handed back to the webserver. Very cool.
For complete details, see http://www.joeconway.com/web/guest/pl/r/-/wiki/Main/Bytea+Graphing+Example
Testing for interactions in nonlinear regression
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Factorial experiments are very common in agriculture and they are usually
laid down to test for the significance of interactions between experimental
fa...
23 hours ago
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