41c41,45
< environment that you have on your machine.
---
> environment that you have on your machine.  You may use any packages
> that are in the R installation on CSIF, as well as those listed below,
> but no others.  And avoid the temptation to use a package that does not
> appreciably reduce your development/debugging time; package bloat is the
> root of all evil. :-)
90a95,96
> <h2>Generality</h2>
> 
103a110
> the means of those quantities
165a173,176
> <li> Note that this is to be a general function, usable in R in general.
> None of the code should be specific to this assignment.
> </li> </p> 
> 
251c262
< genres
---
> genres; the code will assume the grouping column is an R factor
281a293,296
> <li> Note that this is to be a general function, usable in R in general.
> None of the code should be specific to this assignment.
> </li> </p> 
> 
290c305
< econ, and <i>one-hot</i> in machine learning).  You'll probably need to
---
> econ, and <i>one-hot</i> in machine learning).  You'll need to
296c311,314
< just do 8 genres.
---
> just do 8 genres.  Also, the fact that some movies are of
> multiple genres; the curve for genre i should be based on all movies
> having that genre, even though two different curves may be derived from
> somewhat overlapping sets of movees.