add_count_dt |
Count observations by group |
anti_join_dt |
Join tables |
arrange_dt |
Arrange entries in data.frame |
as_dt |
Short cut to data.table |
as_fst |
Save a data.frame as a fst table |
chop_dt |
Nest and unnest |
col_rn |
Tools for working with row names |
complete_dt |
Complete a data frame with missing combinations of data |
count_dt |
Count observations by group |
cummean |
Cumulative mean |
delete_na_cols |
Dump, replace and fill missing values in data.frame |
delete_na_rows |
Dump, replace and fill missing values in data.frame |
df_mat |
Conversion between tidy table and named matrix |
distinct_dt |
Select distinct/unique rows in data.frame |
drop_na_dt |
Dump, replace and fill missing values in data.frame |
dummy_dt |
Fast creation of dummy variables |
export_fst |
Read and write fst files |
fill_na_dt |
Dump, replace and fill missing values in data.frame |
filter_dt |
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_dt |
Join tables |
group_by_dt |
Group by variable(s) and implement operations |
group_dt |
Data manipulation within groups |
group_exe_dt |
Group by variable(s) and implement operations |
import_fst |
Read and write fst files |
impute_dt |
Impute missing values with mean, median or mode |
inner_join_dt |
Join tables |
intersect_dt |
Set operations for data frames |
in_dt |
Short cut to data.table |
join |
Join tables |
lag_dt |
Fast lead/lag for vectors |
lead_dt |
Fast lead/lag for vectors |
left_join_dt |
Join tables |
longer_dt |
Pivot data from wide to long |
mat_df |
Conversion between tidy table and named matrix |
mutate_dt |
Mutate columns in data.frame |
mutate_vars |
Conditional update of columns in data.table |
mutate_when |
Conditional update of columns in data.table |
nest_dt |
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 |
print_options |
Set global printing method for data.table |
pull_dt |
Pull out a single variable |
rec |
Recode number or strings |
rec_char |
Recode number or strings |
rec_num |
Recode number or strings |
relocate_dt |
Change column order |
rename_dt |
Rename column in data.frame |
rename_with_dt |
Rename column in data.frame |
replace_dt |
Fast value replacement in data frame |
replace_na_dt |
Dump, replace and fill missing values in data.frame |
right_join_dt |
Join tables |
rn_col |
Tools for working with row names |
rowwise_dt |
Data manipulation within groups |
sample_dt |
Sample rows randomly from a table |
sample_frac_dt |
Sample rows randomly from a table |
sample_n_dt |
Sample rows randomly from a table |
select_dt |
Select column from data.frame |
select_fst |
Parse,inspect and extract data.table from fst file |
select_mix |
Select column from data.frame |
semi_join_dt |
Join tables |
separate_dt |
Separate a character column into two columns using a regular expression separator |
setdiff_dt |
Set operations for data frames |
setequal_dt |
Set operations for data frames |
shift_fill |
Dump, replace and fill missing values in data.frame |
slice_dt |
Subset rows using their positions |
slice_fst |
Parse,inspect and extract data.table from fst file |
slice_head_dt |
Subset rows using their positions |
slice_max_dt |
Subset rows using their positions |
slice_min_dt |
Subset rows using their positions |
slice_sample_dt |
Subset rows using their positions |
slice_tail_dt |
Subset rows using their positions |
squeeze_dt |
Nest and unnest |
summarise_dt |
Summarise columns to single values |
summarise_vars |
Summarise columns to single values |
summarise_when |
Summarise columns to single values |
summarize_dt |
Summarise columns to single values |
summarize_vars |
Summarise columns to single values |
summarize_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 |
top_dt |
Select top (or bottom) n rows (by value) |
top_frac_dt |
Select top (or bottom) n rows (by value) |
top_n_dt |
Select top (or bottom) n rows (by value) |
transmute_dt |
Mutate columns in data.frame |
t_dt |
Efficient transpose of data.frame |
unchop_dt |
Nest and unnest |
uncount_dt |
"Uncount" a data frame |
union_dt |
Set operations for data frames |
unite_dt |
Unite multiple columns into one by pasting strings together |
unnest_dt |
Nest and unnest |
utf8_encoding |
Use UTF-8 for character encoding in a data frame |
wider_dt |
Pivot data from long to wide |