[R] Text-based graphics/plots
Greg Snow
Greg.Snow at imail.org
Tue Apr 15 18:04:52 CEST 2008
When I first started using an early port of S, the main way to create
graphs was with the "printer" graphics device which created plots like
this (back then that was impressive). S-PLUS does still have the
printer graphics device to do things like this, but I don't think that
anyone has ever implemented it for R (those with the skill don't have
the desire). It has been discussed a couple of times in the past on
this list, but I don't think it ever went very far.
The program gnuplot has support for a dumb terminal type of plotting
that also creates this type of plot. There is a very crude interface
between R and gnuplot in the TeachingDemos package (see ?gp.open). One
approach would be to have R create the appropriate data (binning,
quartiles, ...) and send that to gnuplot for plotting as text (this
would require a separate download and install of gnuplot).
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
(801) 408-8111
> -----Original Message-----
> From: r-help-bounces at r-project.org
> [mailto:r-help-bounces at r-project.org] On Behalf Of Karl Ove Hufthammer
> Sent: Tuesday, April 15, 2008 8:39 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Text-based graphics/plots
>
> When discussing statistics in e-mail based discussion groups,
> or in newsgroups, it is sometimes useful to include simple,
> text-based statistical graphics. Here is an example, a
> histogram (only useful with a fixed-width font, obviously).
>
>
> :.....
> ..:::::::::.
> .:::::::::::::::
> ...:::::::::::::::::::
> . . .........::::::::::::::::::::::::::.........
> -------+---------+---------+---------+---------+---------+----
> 465 480 495 510 525 540
>
> Other useful plots would be boxplots, scatterplots (even
> Trellis-like, with multiple panels), line plots, and perhaps
> even levelplots.
>
> Does there exist a package containing such functions, or
> perhaps a text-based output device?
>
> I already know about the 'stem' function, which is very
> nicely implemented, BTW. Here is some sample output (normal
> distribution, with decimal point at '|').
>
> 46 | 8
> 47 | 123799
> 48 | 01222234456
> 49 | 001222333444678
> 50 | 1233334457788
> 51 | 00022556667778999
> 52 | 0112223
> 53 | 79
> 54 | 049
>
> --
> Karl Ove Hufthammer
>
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