R-beta: Questions

Ted Harding (Ted.Harding@nessie.mcc.ac.uk)
Mon, 21 Jul 1997 10:23:03 +0100 (GMT+0100)

Message-Id: <m0wqEgL-000FqEC@Tedistan.annex.umist.ac.uk>
From: Ted.Harding@nessie.mcc.ac.uk (Ted Harding)
Subject: R-beta: Questions
To: r-help@stat.math.ethz.ch (R Help List)
Date: Mon, 21 Jul 1997 10:23:03 +0100 (GMT+0100)

Hi Folks,

Some more questions:

Q1: Is anyone collecting suggestions for amendments to the documentation
    (online "help" and R-Notes)? --

Q2: (Supersedes Q1 to am unknown extent) -- or are there moves to bring
    R more in line with the documentation?

Q3: (Graphics) I'm not seeing how to use the available graphics parameters
    to directly control the displayed scaling of user coordinates.

    For instance: The demo demos/graphics/image shows the Maunga Whau
    volcano. X ranges from 0:870 metres, Y from 0:610 metres. I would like
    to see (and especially print) 100m on the x-axis the same length as
    100m on the y-axis.

    One option for this specific case might read "eqs=TRUE"
    ("equal scaling").

    A more generally useful option might read "ucar=1.0" ("user coordinate
    aspect ratio") set to a real value which is the aspect ratio
    (y-ht/x-ht) of the displayed rectangle which is 1 user unit high and 1
    user unit wide.

With thanks for all useful feedback,
Ted.                                    (Ted.Harding@nessie.mcc.ac.uk)
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