R help - Apr 2009 - setting levels in contourplot()

Does the contourplot() routine have an argument analogous to the
"levels" argument in the contour() routine?  More generally, is there
a
way for the user to fix the contour levels in contourplot()?  Thanks.

--Sam Cable

On Apr 20, 2009, at 10:30 AM, Cable, Samuel B Civ USAF AFMC AFRL/RVBXI  
wrote:
> Does the contourplot() routine have an argument analogous to the
> "levels" argument in the contour() routine?  More generally, is  
> there a
> way for the user to fix the contour levels in contourplot()?  Thanks.
>
> --Sam Cable
You might consider offering the name of the package.

David Winsemius, MD
Heritage Laboratories
West Hartford, CT

Cable, Samuel B <Samuel.Cable <at> hanscom.af.mil> writes:
> Does the contourplot() routine have an argument analogous to the
> "levels" argument in the contour() routine?  More generally, is
there a
> way for the user to fix the contour levels in contourplot()?  Thanks.
Assuming lattice:

cuts

Dieter

On Apr 20, 2009, at 11:22 AM, Dieter Menne wrote:
> Cable, Samuel B <Samuel.Cable <at> hanscom.af.mil> writes:
>
>> Does the contourplot() routine have an argument analogous to the
>> "levels" argument in the contour() routine?  More generally,
is
>> there a
>> way for the user to fix the contour levels in contourplot()?  Thanks.
>
> Assuming lattice:
>
> cuts
>
> Dieter
>
Also assuming lattice, cuts would be the analog of nlevels=<n> in  
contour, but to specify particular levels which I believe was the  
request, it appears one would need to set pretty=FALSE and use the at=  
parameter in panel.contourplot.

-- 
David Winsemius, MD
Heritage Laboratories
West Hartford, CT