# Re: [R] Plotting contour & filled.contour in one graph

From: Michael Prager <Mike.Prager_at_noaa.gov>
Date: Mon 13 Feb 2006 - 07:15:17 EST

GG

Thus such a plot displays two different responses from a two-dimensional range of conditions. As an example, in fishery biology, x might be the age at which fish are first subject to capture, y might be the fishing mortality rate (intensity) applied, z might be the resulting yield per fish, and zz might be the resulting spawning per fish. There is usually a trade-off between yield and spawning potential, and such a graph (if done with real data) allows one to look at that trade-off.

The OP seemed to be seeking a way of contouring two responses against two independent variables, and that's what this graph does.

Is that clearer? Would the graph would be better if I used real data?

MHP Gabor Grothendieck wrote on 2/12/2006 11:31 AM:
> Could you walk us through, in detail, what that graph is showing?
>
>
> On 2/12/06, Michael Prager <Mike.Prager@noaa.gov> wrote:
>
>> Besides the answers you already have, you might look at my "4D" graph
>> example (with code) on the R Graphics Gallery:
>>
>>
>> I think it does exactly what you are asking, and therefore it might fit
>> your needs with only slight code modification.
>>
>> Mike Prager
>>
>>
>> Abd Rahman Kassim wrote on 2/12/2006 11:12 PM:
>>
>>> Dear All,
>>>
>>> I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:
>>>
>>> filled.contour(0:15,0:10,t(matrix(Total.C,nrow=11,ncol=16)))
>>>
>>> Thanks for anay assistance.
>>>
>>> Regards.
>>>
>>>
>>> Abd Rahman Kassim
>>> Forest Research Institute Malaysia
>>> Kepong 52109
>>> Selangor, MALAYSIA
>>>
>>> *****************************************
>>>
>>>
>>> *****************************************
>>> [[alternative HTML version deleted]]
>>>
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>> --
>> Michael H. Prager, Ph.D.
>> Population Dynamics Team
>> NOAA Center for Coastal Habitat and Fisheries Research
>> NMFS Southeast Fisheries Science Center
>> Beaufort, North Carolina 28516 USA
>> http://shrimp.ccfhrb.noaa.gov/~mprager/
>>
>> ______________________________________________
>> R-help@stat.math.ethz.ch mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>>
>>

```--
Michael H. Prager, Ph.D.
Population Dynamics Team
NOAA Center for Coastal Habitat and Fisheries Research
NMFS Southeast Fisheries Science Center
Beaufort, North Carolina  28516  USA
http://shrimp.ccfhrb.noaa.gov/~mprager/

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