assert |
Display an error, and record in a log file, if a condition is false |
error |
Display an error, and record it in a log file. |
error_if |
Display an error, and record in a log file, if a condition is true. |
has_names |
Checks whether the variable has names |
info |
Display a message, and record it in a log file. |
info_if |
Display a message, and record in a log file, if a condition is true. |
is_dir |
Checks whether the variable is a path to an existing directory |
is_file |
Checks whether the variable is a path to an existing file |
is_in |
Checks whether all elements of one variable are in another |
is_na |
Checks whether the variable is NA |
is_readable |
Checks whether the variable is a path to an existing, readable file or directory |
is_url |
Checks whether the variable is a valid URL |
is_writeable |
Checks whether the variable is a path to an existing, writeable file or directory |
msgr |
Extends messages, warnings and errors by adding levels and log files |
try_catch |
Try to evaluate an expressions and capture any messages, warnings or errors |
try_map |
Apply a function over a vector or list, capturing any errors to display at the end |
try_pmap |
Apply a function over a list of vectors, capturing any errors to display at the end |
warn |
Display a warning, and record it in a log file. |
warn_if |
Display a warning, and record in a log file, if a condition is true. |