Analytics question -- Do any of you have experience with R?

[mjr]

Here's what I'm trying to do.

Let's say I have a dataset with columns A through H (or J, I haven't decided yet).

I want to train the dataset, but when I make my prediction, I want to put in columns A and B, and get a result, X.

I'm not exactly sure how to set up my data frames and such so this works out.

Anybody got any ideas?