dplyr updates

[lukejharmon]

The new version of dplyr has gotten rid of select_(), filter_(), and etc. This breaks a couple examples in the tutorial. I think what's there mostly works with select() and filter(). For example,

select(td, mytraits)

works.

But:

criteria <- list("X1 > -1", "D1 == 'Hello'", "is.na(XNA1)==TRUE") filter(td, .dots=criteria)

Doesn't work.