[S] SUMMARY + DOCU BUG: unexpected behaviour of trellis countourplot()

Jens Oehlschlaegel (oehl@Psyres-Stuttgart.DE)
Wed, 1 Jul 1998 17:23:14 +0200 (MET DST)


Thanks to Stephen Kaluzny for pointing out quickly that I should write

panel.contourplot(x, y, subscripts, z, ...)

rather than

panel.contourplot(x, y, z, subscripts, ...)

which solved the problem. I got trapped because of a DOCUMENTATION BUG.
Both help.files (WinS+3.3 and WinS+4.0 Release 3) state that

panel.contourplot(x, y, subscripts, z, ...)
panel.levelplot(x, y, subscripts, z, ...)

which is wrong. Be warned.

Best regards

Jens Oehlschlaegel-Akiyoshi

-- the original question was :

On Wed, 1 Jul 1998, Jens Oehlschlaegel wrote:

>
>
> Dear collegues,
>
> In trying to superpose raw data onto a loess-fitt
> where the loess fit is plotted with trellis' contourplot(),
> I met a strange behaviour of contourplot() which I do not understand
> (I'm using WinS+3.3 under Win95).
> Can someone point out what's going wrong in the following:
>
> # The following two functions give the same result: smooth contour lines
>
> contourplot(KAT~BMIP1*DOSIS, data=temp2)
> contourplot(KAT~BMIP1*DOSIS, data=temp2, panel=panel.contourplot)
>
> # But if I write my own panel function just calling panel.contourplot()
>
> contourplot(KAT~BMIP1*DOSIS, data=temp2
> , panel= function(x, y, subscripts, z, ...){
> panel.contourplot(x, y, subscripts, z, ...)
> # here I plan to plot my raw data
> }
> )
>
> # then I do not get the same result: contour lines are less smooth!
> # Shouldn't those three versions give the same results?
>
> Thanks for any help
>
> Best regards
>
>
>
> Jens Oehlschlaegel-Akiyoshi
>
>
> --
> Jens Oehlschlaegel-Akiyoshi
> Psychologist/Statistician
>
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>
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>
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--
Jens Oehlschlaegel-Akiyoshi
Psychologist/Statistician

CURRENT ADDRESS (until 12/98) | PERMANENT VIRTUAL ADDRESS ------------------------------------------------------------------------ | http://www.geocities.com/Tokyo/Bay/5663/ oehl@psyres-stuttgart.de | oehl@geocities.com +49 711 6781-408 (phone) | +49 711 6876902 (fax) |

Center for Psychotherapy Research | Christian-Belser-Strasse 79a | D-70597 Stuttgart Germany |

(general disclaimer)

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