On 7/2/2009 10:53 AM, Bert Gunter wrote:
-- (The Windows GUI does have syntax completion using TAB, but not the hints.)

I never knew that! Where is this documented? -- i.e. where are all the
features of the Windows GUI documented (as there may well be others I don't
know about).


The CHANGES file tends to be the place to look for stuff like this. From an entry for 2.5.0:

    o   There is support in both Rgui and Rterm for object/file name
        completion via the TAB key using package rcompgen.  This can
        be disabled by setting the environment variable
        R_COMPLETION=FALSE when starting R (e.g. in ~/.Renviron).
        (Words within quotes are interpreted as file names, others as
        R object names.  Use library(rcompgen); ?rc.options for more
        details, including tuning the behaviour.)

Subscribe to one of the feeds listed on http://developer.r-project.org/RSSfeeds.html if you want to hear about these things as they are developed (and watch typos being corrected, etc.), or just read through the "New features in this version: Windows specific" on the CRAN download site.

Some other help (on startup options) is available if you run Rgui --help, and more if you use the Help|Console menu item. But there is no Rgui manual as such. If you want to write one, I'd suggest putting it on the R Wiki, so you don't take on sole responsibility for maintaining it.

Duncan

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