[R] running many different regressions

[John Kane]

--- On Sun, 9/20/09, Wensui Liu <liuwensui at gmail.com> wrote:

> From: Wensui Liu <liuwensui at gmail.com>
> Subject: Re: [R] running many different regressions
> To: "Gabor Grothendieck" <ggrothendieck at gmail.com>
> Cc: R-help at r-project.org
> Received: Sunday, September 20, 2009, 3:04 PM
> should chicken be blamed by the
> people allergic by eggs?

It's more like : Don't give matches to a child.  

The problem that Gabor is pointing out is that a new R user may not recognize what that rm  command was going to do and paste it into R to see what happens.  And then KABLOOIE.  

It's particularly dangerous right now as schools in much of the Northern Hemisphere are starting up and we are likely be be getting a lot of very new 'new users'. 



> 
> On Sun, Sep 20, 2009 at 3:00 PM, Gabor Grothendieck
> <ggrothendieck at gmail.com>
> wrote:
> > Not everyone carefully examines the code from r-help
> posts
> > prior to pasting it in.  Posting code is very
> dangerous and
> > should not be done.
> >
> > Quite the contrary they often try to understand the
> > code by running it.
> >
> > Code like this should never be posted.
> >
> >
> >
> > On Sun, Sep 20, 2009 at 2:47 PM, Wensui Liu <liuwensui at gmail.com>
> wrote:
> >> well, i assume you understand what my code does.
> >> please don't use if you don't know what you are
> using.
> >>
> >> On Sun, Sep 20, 2009 at 2:44 PM, Gabor
> Grothendieck
> >> <ggrothendieck at gmail.com>
> wrote:
> >>> On Sun, Sep 20, 2009 at 2:38 PM, Wensui Liu
> <liuwensui at gmail.com>
> wrote:
> >>>> I just quickly draft one with boston
> housing data. and it should be
> >>>> close to what you need.
> >>>>
> >>>> # REMOVE ALL OBJECTS
> >>>> rm...
> >>>
> >>> WARNING!!!
> >>>
> >>> Running the code in this post could wipe out
> your entire workspace!!!!
> >>>
> >>> Please do NOT post such code.
> >>>
> >>
> >>
> >>
> >> --
> >> ==============================
> >> WenSui Liu
> >> Blog   : statcompute.spaces.live.com
> >> Tough Times Never Last. But Tough People Do.  -
> Robert Schuller
> >> ==============================
> >>
> >
> 
> 
> 
> -- 
> ==============================
> WenSui Liu
> Blog   : statcompute.spaces.live.com
> Tough Times Never Last. But Tough People Do.  - Robert
> Schuller
> ==============================
> 
> ______________________________________________
> R-help at r-project.org
> mailing list
> 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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