did you guys consider (or try out) Eureqa [1] to get a good model for the estimate? It works very well with such kind of data.
[1] http://creativemachines.cornell.edu/eureqa
did you guys consider (or try out) Eureqa [1] to get a good model for the estimate? It works very well with such kind of data.
[1] http://creativemachines.cornell.edu/eureqa