RE: [R] par(uin)

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Subject: RE: [R] par(uin)
From: Martin Maechler (maechler@stat.math.ethz.ch)
Date: Wed 27 Oct 1999 - 19:36:05 EST


Message-ID: <14358.51077.874153.394381@gargle.gargle.HOWL>

Thank you Bendix,
{I hope it's okay if I CC my answer to your private mail to R-devel ..}

>>>>> On Wed, 27 Oct 1999 08:55:28 +0200, BXC@novo.dk (Bendix Carstensen) said:

>> -----Original Message-----
>> From: Martin Maechler [mailto:maechler@stat.math.ethz.ch]
>> Sent: 25. oktober 1999 14:58 To:Gregory R. Warnes
>> Cc: R-help@stat.math.ethz.ch Subject: Re: [R]

MM> par(uin)

Bendix> (deleted)

MM> BTW: "uin" gives ``inches per usr unit'' (not the reverse as you
MM> suggest).
MM>
MM> Should `R' provide "uin" (as read-only) par() ?

RFC: Should we have it? or is it unnecessary featurism ?

Bendix> Yes, but call it "ipu" if it returns inches per unit!

No, not "ipu" for two reasons:

1)
   np <- names(par()); np[substring(np,2,3)=="in"]

currently gives

   [1] "cin" "din" "fin" "pin"

   (and S-plus has "uin" additionally)

And all of these give
    ``<something> in inches''

For "uin" these would be

    ``user units in inches''
which *is* the same as
    ``inches per usr unit''

2) S compatibility..

 We don't want 100% S-compatibility in par() treatment,
 {not repeating problematic behavior},
 but for things like this, compatibility is an issue.

Martin Maechler <maechler@stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO D10 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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