Fast and Memory Efficient Data Operations in Tidy Syntax

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Documentation for package ‘tidyft’ version 0.5.7

• DESCRIPTION file.
• User guides, package vignettes and other documentation.

Help Pages

add_count	Count observations by group
anti_join	Join tables
arrange	Arrange entries in data.frame
as_fst	Save a data.frame as a fst table
chop	Nest and unnest
complete	Complete a data frame with missing combinations of data
count	Count observations by group
cummean	Cumulative mean
delete_na	Drop or delete data by rows or columns
df_mat	Conversion between tidy table and named matrix
distinct	Select distinct/unique rows in data.table
drop_na	Drop or delete data by rows or columns
dummy	Fast creation of dummy variables
export_fst	Read and write fst files
fill	Fill in missing values with previous or next value
filter	Filter entries in data.frame
filter_fst	Parse,inspect and extract data.table from fst file
fst	Parse,inspect and extract data.table from fst file
full_join	Join tables
groups	Group by one or more variables
group_by	Group by one or more variables
group_exe	Group by one or more variables
import_fst	Read and write fst files
inner_join	Join tables
lag	Fast lead/lag for vectors
lead	Fast lead/lag for vectors
left_join	Join tables
longer	Pivot data between long and wide
mat_df	Conversion between tidy table and named matrix
mutate	Create or transform variables
mutate_vars	Create or transform variables
mutate_when	Create or transform variables
nest	Nest and unnest
nth	Extract the nth value from a vector
object_size	Nice printing of report the Space Allocated for an Object
parse_fst	Parse,inspect and extract data.table from fst file
pull	Pull out a single variable
read_csv	Convenient file reader
relocate	Change column order
rename	Select/rename variables by name
replace_vars	Fast value replacement in data frame
right_join	Join tables
rowwise_mutate	Computation by rows
rowwise_summarise	Computation by rows
select	Select/rename variables by name
select_dt	Select/rename variables by name
select_fst	Parse,inspect and extract data.table from fst file
select_mix	Select/rename variables by name
select_vars	Select/rename variables by name
semi_join	Join tables
separate	Separate a character column into two columns using a regular expression separator
shift_fill	Fill in missing values with previous or next value
slice	Subset rows using their positions
slice_fst	Parse,inspect and extract data.table from fst file
slice_head	Subset rows using their positions
slice_max	Subset rows using their positions
slice_min	Subset rows using their positions
slice_sample	Subset rows using their positions
slice_tail	Subset rows using their positions
squeeze	Nest and unnest
summarise	Summarise columns to single values
summarise_vars	Summarise columns to single values
summarise_when	Summarise columns to single values
summary_fst	Parse,inspect and extract data.table from fst file
sys_time_print	Convenient print of time taken
transmute	Create or transform variables
unchop	Nest and unnest
uncount	"Uncount" a data frame
ungroup	Group by one or more variables
unite	Unite multiple columns into one by pasting strings together
unnest	Nest and unnest
utf8_encoding	Use UTF-8 for character encoding in a data frame
wider	Pivot data between long and wide