fixed bug
got joins working right
finsihed discount code, still come issues, discovered the problem of item versus item family. Updated plot. No signal so far.
fixed code, I think. Damn R!!! I hate factors. Removed incorrect plot.
got the Discount thing to work much better. Had to control for chain
added a plot Discounts.png
Still no corrleation
Merge branch 'master' of github.com:dave31415/AVSC