Dear All I want to convert a scatter plot to a continuous contour plot. I have "x" as a variable and "y" as another variable. is there any package for this? can anybody halp me? Thanks Azam [[alternative HTML version deleted]]
On 24/02/2014 12:45 PM, azam jaafari wrote:> Dear All > > I want to convert a scatter plot to a continuous contour plot. I have "x" as a variable and "y" as another variable. > is there any package for this? > can anybody halp me?A contour plot of values associated with the points, or a contour plot of the density of the points? For the former, I think you want to use the akima package; for the density estimate, you could use kde2d from the MASS package. In either case, you need to compute the values of the function on a grid, then the contour() function can plot it. Duncan Murdoch
Azam,
If you also have z ~ f(x,y) you can produce contours.
Otherwise, you could look at package hexbin.
Clint
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On Mon, 24 Feb 2014, azam jaafari wrote:
>
> Dear All
>
> I want to convert a scatter plot to a continuous contour plot. I have
"x" as a variable and "y" as another variable.
> is there any package for this?
> can anybody halp me?
>
> Thanks
> Azam
> [[alternative HTML version deleted]]
>
> ______________________________________________
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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.
>
In addition to the other responses, I'd like to suggest:
help.search('contour', package='graphics')
Since the graphics package comes with R, you don't necessarily need any
additional package for contouring. But you will need the akima package for
interpolation. Assuming you're doing a contour plot of values associated
with the points, as Duncan put it.
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 2/24/14 9:45 AM, "azam jaafari" <azamjaafari at yahoo.com>
wrote:
>
>Dear All
>
>I want to convert a scatter plot to a continuous contour plot. I have
"x"
>as a variable and "y" as another variable.
>is there any package for this?
>can anybody halp me?
>
>Thanks
>Azam
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.