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dplyr (version 0.4.0)
A Grammar of Data Manipulation
Description
A fast, consistent tool for working with data frame like objects, both in memory and out of memory.
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Install
install.packages('dplyr')
Monthly Downloads
1,494,439
Version
0.4.0
License
MIT + file LICENSE
Issues
63
Pull Requests
9
Stars
4,655
Forks
2,116
Repository
https://github.com/hadley/dplyr
Maintainer
Hadley Wickham
Last Published
January 8th, 2015
Functions in dplyr (0.4.0)
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join.tbl_df
Join data frame tbls.
build_sql
Build a SQL string.
sql
SQL escaping.
copy_to
Copy a local data frame to a remote src.
slice
Select rows by position.
as.tbl_cube
Coerce an existing data structure into a
tbl_cube
grouped_df
A grouped data frame.
glimpse
Get a glimpse of your data.
desc
Descending order.
tbl
Create a table from a data source
make_tbl
Create a "tbl" object
rowwise
Group input by rows
join.tbl_sql
Join sql tbls.
nth
Extract the first, last or nth value from a vector.
src_mysql
Connect to mysql/mariadb.
nycflights13
Database versions of the nycflights13 data
order_by
A helper function for ordering window function output.
group_size
Calculate group sizes.
copy_to.src_sql
Copy a local data frame to a sqlite src.
src
Create a "src" object
as_data_frame
Coerce a list to a data frame.
add_rownames
Convert row names to an explicit variable.
join
Join two tbls together.
temp_srcs
Connect to temporary data sources.
src_tbls
List all tbls provided by a source.
tbl_df
Create a data frame tbl.
backend_db
Database generics.
backend_src
Source generics.
funs
Create a list of functions calls.
bench_compare
Evaluate, compare, benchmark operations of a set of srcs.
filter
Return rows with matching conditions.
knit_print.trunc_mat
knit_print method for trunc mat
sql_quote
Helper function for quoting sql elements.
group_by
Group a tbl by one or more variables.
lahman
Cache and retrieve an
src_sqlite
of the Lahman baseball database.
ranking
Windowed rank functions.
arrange
Arrange rows by variables.
tbl_vars
List variables provided by a tbl.
rbind_all
Efficiently bind multiple data frames by row and column.
n
The number of observations in the current group.
join.tbl_dt
Join data table tbls.
compute
Compute a lazy tbl.
grouped_dt
A grouped data table.
do
Do arbitrary operations on a tbl.
distinct
Select distinct/unique rows.
setops
Set operations.
chain
Chain together multiple operations.
base_scalar
Create an sql translator
partial_eval
Partially evaluate an expression.
groups
Get/set the grouping variables for tbl.
n_distinct
Efficiently count the number of unique values in a vector.
src_local
A local source.
select_vars
Select variables.
query
Create a mutable query object.
tally
Counts/tally observations by group.
summarise_each
Summarise and mutate multiple columns.
id
Compute a unique numeric id for each unique row in a data frame.
print.tbl_df
Tools for describing matrices
type_sum
Provide a succint summary of a type
summarise
Summarise multiple values to a single value.
explain
Explain details of an tbl.
group_indices
Group id.
with_order
Run a function with one order, translating result back to original order
nasa
NASA spatio-temporal data
data_frame
Build a data frame.
dplyr
dplyr: a grammar of data manipulation
tbl_dt
Create a data table tbl.
tbl_cube
A data cube tbl.
translate_sql
Translate an expression to sql.
all.equal.tbl_df
Provide a useful implementation of all.equal for data.frames.
select
Select/rename variables by name.
failwith
Fail with specified value.
between
Do values in a numeric vector fall in specified range?
backend_sql
SQL generation.
src_sqlite
Connect to a sqlite database.
mutate
Add new variables.
location
Print the location in memory of a data frame
top_n
Select top n rows (by value).
same_src
Figure out if two sources are the same (or two tbl have the same source)
cumall
Cumulativate versions of any, all, and mean
sample
Sample n rows from a table.
tbl_sql
Create an SQL tbl (abstract)
dplyr-cluster
Cluster management.
src_postgres
Connect to postgresql.
lead-lag
Lead and lag.
progress_estimated
Progress bar with estimated time.
src_sql
Create a "sql src" object