Collection of small helper functions. trim_ws()
is an
efficient function to trim leading and trailing whitespaces from character
vectors or strings. n_unique()
returns the number of unique values in a
vector. safe_deparse()
is comparable to deparse1()
, i.e. it can safely
deparse very long expressions into a single string.
Usage
trim_ws(x, ...)
# S3 method for data.frame
trim_ws(x, character_only = TRUE, ...)
n_unique(x, ...)
# S3 method for default
n_unique(x, na.rm = TRUE, ...)
safe_deparse(x, ...)
Arguments
- x
A (character) vector, or for some functions may also be a data frame.
- ...
Currently not used.
- character_only
Logical, if
TRUE
andx
is a data frame or list, only processes character vectors.- na.rm
Logical, if missing values should be removed from the input.