logger {log4r} | R Documentation |
Create Logger Objects
Description
This is the main interface for configuring logging behaviour. We adopt the well-known log4j etymology: Appenders are destinations (e.g. the console or a file) where messages are written, and the Layout is the format of the messages.
Usage
logger(threshold = "INFO", appenders = console_appender())
Arguments
threshold |
The logging threshold level. Messages with a lower priority
level will be discarded. See |
appenders |
The logging appenders; both single appenders and a
|
Value
An object of class "logger"
.
See Also
Appenders and Layouts for information on controlling the behaviour of the logger object.
Examples
# By default, messages are logged to the console at the
# "INFO" threshold.
logger <- logger()
info(logger, "Located nearest gas station.")
warn(logger, "Ez-Gas sensor network is not available.")
debug(logger, "Debug messages are suppressed by default.")
[Package log4r version 0.4.3 Index]