[R] Viewing a data object

[Liaw, Andy]

I believe JGR has an object browser.  See the screenshots at the bottom
of http://rosuda.org/JGR/.

Andy 

From: Stephen Tucker
> 
> Hi Horace,
> 
> I have also thought that it may be useful but I don't know of 
> any Object
> Explorer available for R.
> 
> However, (you may alread know this but) 
> (1) you can view your list of objects in R with objects(), 
> (2) view objects in a spreadsheet-like table (if they are 
> matrices or data
> frames) with invisible(edit(objectName)) [which isn't easy on 
> the fingers].
> fix(objectName) is also a shorter option but it has the side effect of
> possibly changing your object when you close the viewing 
> data. For instance,
> this can happen if you mistakenly type something into a cell; 
> it can also
> change your column classes when you don't - for example:
> 
> > options(stringsAsFactors=TRUE)
> > x <- data.frame(letters[1:5],1:5)
> > sapply(x,class)
> letters.1.5.         X1.5 
>     "factor"    "integer" 
> > fix(x) # no user-changes made
> > sapply(x,class)
> letters.1.5.         X1.5 
>     "factor"    "numeric" 
> 
> (3) I believe Deepayan Sarkar contributed the tab-completion 
> capability at
> the command line. So unless you have a lot of objects beginning with
> 'AuroraStoch...' you should be able to type a few letters and let the
> auto-completion handle the rest.
> 
> Best regards,
> 
> ST
> 
> 
> --- Horace Tso <Horace.Tso at pgn.com> wrote:
> 
> > Dear list,
> > 
> > First apologize that this is trivial and just betrays my 
> slothfulness at
> > the keyboard. I'm sick of having to type a long name just 
> to get a glimpse
> > of something. For example, if my data frame is named
> > 'AuroraStochasticRunsJune1.df" and I want to see what the 
> middle looks
> > like, I have to type
> > 
> > AuroraStochasticRunsJune1.df[ 400:500, ]
> > 
> > And often I'm not even sure rows 400 to 500 are what I want 
> to see.  I
> > might have to type the same line many times.
> > 
> > Is there sort of a R-equivalence of the Object Explorer, 
> like in Splus,
> > where I could mouse-click an object in a list and a window 
> pops up?  Short
> > of that, is there any trick of saving a couple of 
> keystrokes here and
> > there?
> > 
> > Thanks for tolerating this kind of annoying questions.
> > 
> > H.
> > 
> > ______________________________________________
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> > 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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> PLEASE do read the posting guide 
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> 
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