[R] A contour plot question - vis.gam () function in "mgcv"

[Ravi Varadhan]

Thank you, Peter.  I don't know why I didn't think of this! 

Also, thanks to Ilai.

Ravi

________________________________________
From: Peter Ehlers [ehlers at ucalgary.ca]
Sent: Tuesday, April 03, 2012 8:22 PM
To: ilai
Cc: Ravi Varadhan; r-help at r-project.org
Subject: Re: [R] A contour plot question - vis.gam () function in "mgcv"

On 2012-04-03 15:49, ilai wrote:
> Try to plot the points first followed by vis.gam(...,type='contour',
> color='bw', add=T) instead of vis.gam followed by points.
>
> HTH

Or, if vis.gam gives you default scales that you wish to preserve,
then just replot the contours over the points with

    vis.gam(....., add = TRUE)

Peter Ehlers

>
>
> On Tue, Apr 3, 2012 at 2:48 PM, Ravi Varadhan<rvaradhan at jhmi.edu>  wrote:
>> Hi,
>>
>> Please see the attached contour plot (I am sorry about the big file).  This was created using the vis.gam() function in "mgcv" package.  However, my question is somewhat broader.
>>
>> In generating this figure, I first created the contours using vis.gam() and then I plotted the points.  These point are plotted on top of the contours so that some of the contour lines are only partially visible.  Is there a way to make the contour lines fully visible?  I cannot reverse the order and plot the points first and then call vis.gam().  Or, can I?  Are there other options?
>>
>> Thanks for any help or hints.
>>
>> Best,
>> Ravi
>>
>>
>> Ravi Varadhan, Ph.D.
>> Assistant Professor
>> The Center on Aging and Health
>> Division of Geriatric Medicine&  Gerontology
>> Johns Hopkins University
>> rvaradhan at jhmi.edu<mailto:rvaradhan at jhmi.edu>
>> 410-502-2619
>>
>>
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>
> ______________________________________________
> R-help at r-project.org mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.