We have decided to wholeheartedly embrace dplyr (in "Data.frame manipulation"), so some of the subsetting here is redundant. A possible plan for things that should stay:
Vectors and vectorization
numeric indexing
logical indexing
A data.frame is vectors as columns in a table
$ extraction; no [] or 2-d extraction
Inspecting data frames (especially str and summary, head is less important since we'll be working with tibbles and their friendly print method).
We have decided to wholeheartedly embrace
dplyr
(in "Data.frame manipulation"), so some of the subsetting here is redundant. A possible plan for things that should stay:str
andsummary
,head
is less important since we'll be working with tibbles and their friendly print method).