Easily Tidy Data with 'spread()' and 'gather()' Functions

Documentation for package ‘tidyr’ version 0.8.3

complete	Complete a data frame with missing combinations of data.
crossing	Expand data frame to include all combinations of values
drop_na	Drop rows containing missing values
expand	Expand data frame to include all combinations of values
extract	Extract one column into multiple columns.
fill	Fill in missing values.
full_seq	Create the full sequence of values in a vector.
gather	Gather columns into key-value pairs.
nest	Nest repeated values in a list-variable.
nesting	Expand data frame to include all combinations of values
population	World Health Organization TB data
replace_na	Replace missing values
separate	Separate one column into multiple columns.
separate_rows	Separate a collapsed column into multiple rows.
smiths	Some data about the Smith family.
spread	Spread a key-value pair across multiple columns.
table1	Example tabular representations
table2	Example tabular representations
table3	Example tabular representations
table4a	Example tabular representations
table4b	Example tabular representations
table5	Example tabular representations
uncount	"Uncount" a data frame
unite	Unite multiple columns into one.
unnest	Unnest a list column.
who	World Health Organization TB data