Dear all, My name is Bilel and I'am a PhD student from Tunisia working on climate modelling. My issue today is how to add a Bravais Pearson test as a contour plot to an existing spplot map. Precisely, I have plotted a SpatialPixelsDataFrame of Pearson correlation coefficients between simulated and observed precipitation over the Mediterranean basin using spplot and I need to now add a contour line of the statically significant correlation coefficient at 95% CI.I have been vainly trying for several days to solve this issue, so I really need your help please Best regards?Bilel? [[alternative HTML version deleted]]
Well, creating an example from scratch to show you how it is done can be a lot
of work, and depending on your specific data such code can end up being wasted
work. For this reason the polite thing to do is to provide a minimal
reproducible example that list readers can use to start from. [1]
Also, you should read the Posting Guide, which warns you that the R mailing
lists are plain text only, so if you post HTML as you did then at best we
don't see what you see and at worst it is corrupted. The Guide also mentions
that there are different lists with different topics, and the topic of your
question is probably best addressed on the R-sig-geo mailing list. It looks
nontrivial to me, but there might be a canned solution out there.
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Go...
Live: OO#.. Dead: OO#.. Playing
Research Engineer (Solar/Batteries O.O#. #.O#. with
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Sent from my phone. Please excuse my brevity.
On April 15, 2015 3:15:46 AM PDT, fathalli bilel <bilelfathalli at
yahoo.fr> wrote:>Dear all,
>My name is Bilel and I'am a PhD student from Tunisia working on climate
>modelling. My issue today is how to add a Bravais Pearson test as a
>contour plot to an existing spplot map. Precisely, I have plotted a
>SpatialPixelsDataFrame of Pearson correlation coefficients between
>simulated and observed precipitation over the Mediterranean basin using
>spplot and I need to now add a contour line of the statically
>significant correlation coefficient at 95% CI.I have been vainly trying
>for several days to solve this issue, so I really need your help please
>Best regards?Bilel?
> [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.
Hi,First : thanks for your answerThis is my first post on the R-help forum and
I'm not familiar with the way how to should post.?I am not searching for
"an example from scratch" as you said, I am able to build my own codes
so I'm only looking for tips ?: packages, functions that can help my
issue?(help that does not mean a "code" ready for use")I'm
very polite and I'am shocked by the way your give your answer
Bilel ?
Le Mercredi 15 avril 2015 15h40, Jeff Newmiller <jdnewmil at
dcn.davis.CA.us> a ?crit :
Well, creating an example from scratch to show you how it is done can be a lot
of work, and depending on your specific data such code can end up being wasted
work. For this reason the polite thing to do is to provide a minimal
reproducible example that list readers can use to start from. [1]
Also, you should read the Posting Guide, which warns you that the R mailing
lists are plain text only, so if you post HTML as you did then at best we
don't see what you see and at worst it is corrupted. The Guide also mentions
that there are different lists with different topics, and the topic of your
question is probably best addressed on the R-sig-geo mailing list. It looks
nontrivial to me, but there might be a canned solution out there.
---------------------------------------------------------------------------
Jeff Newmiller? ? ? ? ? ? ? ? ? ? ? ? The? ? .....? ? ? .....? Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>? ? ? ? Basics: ##.#.? ? ? ##.#.? Live
Go...
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Live:? OO#.. Dead: OO#..? Playing
Research Engineer (Solar/Batteries? ? ? ? ? ? O.O#.? ? ? #.O#.? with
/Software/Embedded Controllers)? ? ? ? ? ? ? .OO#.? ? ? .OO#.? rocks...1k
---------------------------------------------------------------------------
Sent from my phone. Please excuse my brevity.
rote:>Dear all,
>My name is Bilel and I'am a PhD student from Tunisia working on climate
>modelling. My issue today is how to add a Bravais Pearson test as a
>contour plot to an existing spplot map. Precisely, I have plotted a
>SpatialPixelsDataFrame of Pearson correlation coefficients between
>simulated and observed precipitation over the Mediterranean basin using
>spplot and I need to now add a contour line of the statically
>significant correlation coefficient at 95% CI.I have been vainly trying
>for several days to solve this issue, so I really need your help please
>Best regards?Bilel?
>??? [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.
[[alternative HTML version deleted]]
I think we need basic code and sample data to see what you are doing. Have a look at http://adv-r.had.co.nz/Reproducibility.html and/or http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example for some hints. For this last link it is a good idea to follow the " reproducible example " link for more concrete suggestions. As Jeff has pointed out, this is not likely to be the best place to post. A more specialized group as he suggested is more likely to be able to help. John Kane Kingston ON Canada> -----Original Message----- > From: bilelfathalli at yahoo.fr > Sent: Wed, 15 Apr 2015 10:15:46 +0000 (UTC) > To: r-help at r-project.org > Subject: [R] adding a bravais pearson test to spplot > > Dear all, > My name is Bilel and I'am a PhD student from Tunisia working on climate > modelling. My issue today is how to add a Bravais Pearson test as a > contour plot to an existing spplot map. Precisely, I have plotted a > SpatialPixelsDataFrame of Pearson correlation coefficients between > simulated and observed precipitation over the Mediterranean basin using > spplot and I need to now add a contour line of the statically significant > correlation coefficient at 95% CI.I have been vainly trying for several > days to solve this issue, so I really need your help please > Best regards?Bilel > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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.____________________________________________________________ FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop!
I also suggest you take this question to R-Sig-geo. Since spplot() is built on the lattice package, adding new elements to an existing plot is, in my experience, difficult to learn how to do. If you can possibly start with plot() instead of spplot() you will, I think, find it much easier to add contour lines. It will all depend on what kind of objects your data are. Here is an example that might help, or at least give you a few more things to look at.> library(sp) > library(maptools)Checking rgeos availability: TRUE> data(meuse.grid) > coordinates(meuse.grid) <- c('x','y') > meuse.grid <- as(meuse.grid, 'SpatialPixelsDataFrame') > im <- as.image.SpatialGridDataFrame(meuse.grid['dist']) > cl <- ContourLines2SLDF(contourLines(im)) > spplot(cl)-- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 4/15/15, 3:15 AM, "fathalli bilel" <bilelfathalli at yahoo.fr> wrote:>Dear all, >My name is Bilel and I'am a PhD student from Tunisia working on climate >modelling. My issue today is how to add a Bravais Pearson test as a >contour plot to an existing spplot map. Precisely, I have plotted a >SpatialPixelsDataFrame of Pearson correlation coefficients between >simulated and observed precipitation over the Mediterranean basin using >spplot and I need to now add a contour line of the statically significant >correlation coefficient at 95% CI.I have been vainly trying for several >days to solve this issue, so I really need your help please >Best regards Bilel > [[alternative HTML version deleted]] > >______________________________________________ >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >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.