[R] .Rdata files -- fortune?

PIKAL Petr petr.pikal at precheza.cz
Thu Mar 12 07:38:40 CET 2015


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Jan Kim
> Sent: Wednesday, March 11, 2015 4:44 PM
> To: r-help at r-project.org
> Subject: Re: [R] .Rdata files -- fortune?
> On Wed, Mar 11, 2015 at 09:00:15AM -0400, Prof J C Nash (U30A) wrote:
> > Well put. I avoid them too, and go so far as to seek and destroy so
> > they don't get loaded unnoticed and cause unwanted consequences.
> >
> > ".RData files (the ones with nothing before the period) are just
> traps
> > for your future self, with no documentation. I avoid them like the
> plague."
> I absolutely agree. While I've solved the issue for myself long ago by
> always putting something like
>     alias R='R --no-save --no-restore'
> into my startup scripts (~/.bashrc or the like), I've seen too many
> others caught out by implicit saving / restoring of workspaces (e.g.
> by somehow just accepting that R "only works properly in this
> particular directory" and therefore doing all their work there at the
> cost of adopting various anti-patterns with respect to organising work
> into directories.
> Personally I think that auto saving / restoring workspaces should be
> reviewed, as it can, in practice, make it harder for people to render
> their work in a self-contained and reproducible way.

If this is considered I would beg for addind an option to keep autosave work for those who have different approach. If you keep the paradigm one project = one separate directory there shall be no problem with autosaving as you have only one Rdata file together with exported pictures, pdfs, xls and doc files.

If you save history to separate files you can also easily keep track of your work. If autosave is disabled and you could leave your session without warning I bet that there would be hundereds of questions similar to:

I worked whole day and after quitting R all my work is lost.


> Best regards, Jan
> >
> > JN
> >
> > On 15-03-11 07:00 AM, r-help-request at r-project.org wrote:
> > > Message: 34
> > > Date: Tue, 10 Mar 2015 17:51:15 -0700
> > > From: Jeff Newmiller <jdnewmil at dcn.davis.CA.us>
> > > To: Rolf Turner <r.turner at auckland.ac.nz>, Erin Hodgess
> > >   <erinm.hodgess at gmail.com>, R help <r-help at stat.math.ethz.ch>
> > > Subject: Re: [R] .Rprofile vs. First (more of an opinion question)
> > > Message-ID: <E5A53229-B271-42D9-BEAB-73142B2F62F4 at dcn.davis.CA.us>
> > > Content-Type: text/plain; charset="UTF-8"
> > >
> > > I concur with Rolf.
> > >
> > > .RData files (the ones with nothing before the period) are just
> traps for your future self, with no documentation. I avoid them like
> the plague. I refer to specifically-named Something.RData files in my
> .R/.Rnw/.Rmd files to cache results of long computations, but they are
> optional in my workflow because I always have R code that can
> regenerate them.
> > >
> > > .Rprofile files offer consistency of behavior  regardless of which
> working directory you use, and you can comment them.
> > > -------------------------------------------------------------------
> --------
> > > Jeff Newmiller                        The     .....       .....  Go
> Live...
> > > DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.
> Live Go...
> > >                                       Live:   OO#.. Dead: OO#..
> Playing
> > > Research Engineer (Solar/Batteries            O.O#.       #.O#.
> with
> > > /Software/Embedded Controllers)               .OO#.       .OO#.
> rocks...1k
> > > -------------------------------------------------------------------
> -
> > > ------- Sent from my phone. Please excuse my brevity.
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> --
>  +- Jan T. Kim -------------------------------------------------------+
>  |             email: jttkim at gmail.com                                |
>  |             WWW:   http://www.jtkim.dreamhosters.com/              |
>  *-----=<  hierarchical systems are for files, not for humans  >=-----*
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.

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