JoinVisitorImpl is now parameterized by two r types (left and right). first part of #228
hash cannot be defined like this
Merge branch 'master' of https://github.com/hadley/dplyr
allowing join visitor< INTSXP, REALSXP > for automatic promotion to numeric in the result data
slightly more generic code.
mv some code to join.cpp
allowing join visitor< REALSXP, INTSXP|LGLSXP > #123
first steps of join visitor logical/integer. #123
fix JoinVisitorImpl<.,.>::subset
adding some more case to join_visitor dispatch (logical/integer), (integer/logical) -> integer. #123
more dispatch for join visitor. (logical <-> integer), (factor <-> character). #228
protect against NA in select_impl. #355
fix min_rank issue. #313
Initial thoughts/expt
New way to create functions.
Flexible way to specify functions
Move funs to own file and cleanup
New strategy (and name) for colwise_q
Cleaner standard & non-standard evaluation forms
Capture environment in funs