On 23/11/2010 2:35 PM, Janko Thyson wrote:
A short annotation:
I already considered deparsing the object via deparse(x), but that's not
exactly the info I'd like. I'm only interested in a short summary like str()
would give me, not in the deparsed object.
I think you need to give more details. What's wrong with the first line
of str(x)? For example,
str(LETTERS)
chr [1:26] "A" "B" "C" "D" "E" "F" "G" "H" "I" "J" ...
str(mtcars)
'data.frame': 32 obs. of 11 variables:
[ more lines deleted ]
You can get the first line by capture.output(str(x))[1]. You can put
the whole thing into one big ugly line by
paste( capture.output(str(x)), collapse=" ")
Duncan Murdoch
Thx,
Janko
########## SYSTEM INFO ##########
Windows XP SP3
R 2.12.0 (patched as of 2010-11-22)
Eclipse 3.6.1 (Helios)
StatET 0.9.x
###############################
> -----Ursprüngliche Nachricht-----
> Von: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> Im Auftrag von Janko Thyson
> Gesendet: Dienstag, 23. November 2010 20:32
> An: r-h...@r-project. org
> Betreff: [R] Possible to pretty-printing using str()?
>
> Dear list,
>
> I'm looking for a suitable way to sort of "one-line-pretty-print" an
> arbitrary R object in some of my log outputs.
>
> Consider this:
>
> cat(paste("The object/value is: ", x, ".", sep=""), sep="\n")
>
> No problem if x is of class:
> - character (length=1)
> - numeric (length=1)
> - logical (length=1)
>
> For lengths> 1 I can get around by paste(x, collapse=my.delimiter).
> So:
>
> cat(paste("The object/value is: ", paste(x, collapse=my.delimiter),
> ".",
> sep=""), sep="\n")
>
> "Problem" if x is of class
> - data.frame
> - matrix
> - list
> - other complex objects
>
> For those objects something like the output of str() arranged in one
> line of
> class 'character' would be great.
>
> Is that possible somehow?
>
> Thanks for any comments,
> Janko
>
> ########## SYSTEM INFO ##########
> Windows XP SP3
> R 2.12.0 (patched as of 2010-11-22)
> Eclipse 3.6.1 (Helios)
> StatET 0.9.x
> ###############################
>
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> guide.html
> and provide commented, minimal, self-contained, reproducible code.
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