Lightweight Logging for R Scripts

Provides flexible but lightweight logging facilities for R scripts. Supports priority levels for logs and messages, flagging messages, capturing script output, switching logs, and logging to files or connections.

luzlogr

Lightweight logging for R scripts.

Installing

luzlogr is available from CRAN, and can be installed using install.packages(). To install the latest, developmental version from this GitHub repository:

1. Make sure you have devtools installed from CRAN and loaded.
2. install_github("bpbond/luzlogr")

Either way, you can then do:

library(luzlogr)
help(package = 'luzlogr')

Logging

Three functions - openlog(), printlog(), closelog() - provide logging of script output. They provide features including priority levels for logs and messages; optionally capturing all output (via sink); switching between logs; and logging to a text file or arbitrary connection. For example:

openlog("test.log")
printlog("message")
closelog()

The resulting log file test.log looks something like this:

Thu Sep 17 08:46:59 2015  Opening ./test.log
Thu Sep 17 08:46:59 2015  message
Thu Sep 17 08:46:59 2015  Closing test.log  flags = 0
-------
R version 3.2.0 (2015-04-16)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.10.5 (Yosemite)

For more details, see the vignette and documentation.