On Tue, Oct 7, 2014 at 2:21 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote:
> On 07/10/2014, 7:04 AM, DataK - B. THIEURMEL wrote: > > Hi, > > > > With the use of R in production, it is necessary to have a system of > > logs effective, and light. > > > > Package exist as to futile.logger, but it require the additional coding > > of logs. So it is thus impossible / very difficult to use it with all > > package them used in the calculation > > > > Our idea is to develop one packages global, simple, who would allow to > > identify all the errors, warning, message generated by the functions > > stop(), warning() and message() stop as well as by signals and > > internally code, with log levels configurable later by package, > > functions... > > > > One way is to overwrite temporarily the functions stop(), warning() and > > message() of base package, but I think is not a good thing, and > > furthermore, we lose all signals and internally "message"... > > > > A good use of options(error) seems to do the perfect job, but only for > > error... > > > > Our problem / question : > > - At present, how it is possible to have the same features for messages > > and warnings? (like options(errors)) (I don't find...) > > - Would new options be possible in a near future R ? > > - Have there better / other possibilities to handle all the warnings, > > message of the way which we wish? > > > > > withCallingHandlers() lets you evaluate expressions with code to catch > messages, warnings and errors. > That's exactly what I'm using in "pander::evals" to capture all error/warning/normal messages while evaluating an R command, and to also capture the results (as R objects), stdout and the printed version of the object -- which might be useful in a custom environment. E.g. I use this function to evaluate all R chunks in markdown document and also to store all R messages run at the rapporter.net API. Please let me know if anyone is interested, and I will start cleaning up the related codebase and publish on GH -- although "pander" and "evals" is already there: https://github.com/Rapporter/pander Quick demo: http://pastebin.com/jCUkgKim > > I don't know if there's a way to evaluate every expression entered at > the console within withCallingHandlers() for an effect like > options(error=), but you can certainly write code to read a file and > evaluate every expression in it within a withCallingHandlers() call. > > Duncan Murdoch > > > Hope is clear. Open to any suggestions. > > > > Thank you in advance > > > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
