Tony Plate wrote:
At Tuesday 03:44 AM 6/1/2004, Jari Oksanen wrote:
> [snip] Anything can change in R without warning, and your code may be broken anytime. Just be prepared.
>[snip]
One very helpful tool to deal with software updates is automated testing. I highly recommend it. R comes with a testing framework.
If you package up your code, and put lots of tests in the tests directory, and put lots of examples in the documentation, and put in demos for good measure, then it is really, really, easy to test with beta versions of R. This not only helps get any R bugs that affect you fixed before release, but also gives you considerable warning time when there are pending intended changes. Not only that, but if you put the package on CRAN then the testing all gets done for you automatically on several platforms, and on alpha versions, and sometimes even when R design changes are been considered. There is an extremely large payback from contributing to CRAN.
Paul Gilbert
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