Thiago.
--- On Tue, 19/10/10, Roman Luštrik wrote:
From: Roman Luštrik
Subject: Re: [R-sig-Geo] How to clip and interpolate data using shapefile as a
boundary
To: "Thiago Veloso"
Cc: "R SIG list"
Date: Tuesday, 19 October, 2010, 9:58
You can easily clip ras
Dear R-SIGgers,
My current rainfall dataset (ascii, at 0.2 degree resolution) spans the
entire South America and has been loaded into R as a xyz variable:
> summary(prec_data) V1 V2 V3 Min.
> :-82.80 Min. :-50.20 Min. : 0.000 1st Qu.:-70
Dear Carson,
Thank you. This is exactly what I was looking for!
Best,
Thiago.
--- On Mon, 18/10/10, Carson Farmer wrote:
From: Carson Farmer
Subject: Re: [R-sig-Geo] Finding polygon centroid
To: "Thiago Veloso"
Cc: "R SIG list"
Date: Monday, 18 October, 2010, 17
Dear list members,
How can I find a polygon centroid? Google shows me a "get.Pcent" function
within maptools, but it seems to be no longer available...
Best wishes,
Thiago.
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R-sig-Geo mail
My suggestion is to convert your .grd files to self-descriptive ones, for
example netcdf. Considering that you have some experience with GrADS, a helpful
tutorial is available
on http://cookbooks.opengrads.org/index.php?title=Recipe-017:_Subsetting_and_reformating_MERRA_data_with_Lats4d#Exampl
Hello, Matthew.
Just a superb complement of yours.
I was about to ask the same question to Pierre and Paul, after thanking them
for the useful and functional tip. I managed to follow the ggplot examples, but
a next step would involve plotting my interest points over a shape file (state
con
/fig6vdist.png
Best wishes,
Thiago.
--- On Tue, 24/8/10, Mayeul KAUFFMANN wrote:
From: Mayeul KAUFFMANN
Subject: RE: [R-sig-Geo] Mapping multiple attributes at once
To: "'Robert J. Hijmans'" , "'Thiago Veloso'"
Cc: r-sig-geo@stat.math.ethz.ch
Date: Tuesday,
almost a
entire morning.
I was wondering if it is possible to reproduce that using R + GIS packages.
Best regards,
Thiago.
--- On Mon, 23/8/10, Robert J. Hijmans wrote:
From: Robert J. Hijmans
Subject: Re: [R-sig-Geo] Mapping multiple attributes at once
To: "Thiago Veloso"
Cc:
Dear SIG colleagues,
In my present study I need to plot a map containing two different attributes
of some localities.I figured out that a convenient and didactic way would
be via something like bubble plots. For example, the size of the circle would
be proportional to a certain range of
  Dear Siva,
  Installing GDAL libraries should do the trick. Search in Synaptic or
download from this URL:Â http://packages.ubuntu.com/ro/hardy/libgdal1-1.4.0
  Best regards,
  Thiago.
--- On Thu, 8/7/10, Siva Sundaresan wrote:
From: Siva Sundaresan
Subject: [R-sig-Geo] rgdal package
A[126] NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
> NACould you figure out what I'm doing wrong??
Best regards,
Thiago Veloso.
--- On Tue, 29/6/10, Robert J. Hijmans wrote:
From: Robert J. Hijmans
Subject: Re: [R-sig-Geo] Spatial data interpolation on R
To: "Thiago Veloso
  This function worked like a charm, but I can't individually invoke the
columns which contain the coordinates of variable "q".
> names(q)NULL
  For example, I need to plot the coordinates using polygon function, whose
help tells us that "âpolygonâ draws the polygons whose vertices are gi
Prof. Kaza,
Thank you very much. It worked like a charm!
Best wishes,
Thiago.
--- On Wed, 9/6/10, Nikhil Kaza wrote:
From: Nikhil Kaza
Subject: Re: [R-sig-Geo] How to extract coordinates values from a shapefile?
To: "Thiago Veloso"
Cc: r-sig-geo@stat.math.ethz.ch
Date: We
khil Kaza wrote:
From: Nikhil Kaza
Subject: Re: [R-sig-Geo] How to extract coordinates values from a shapefile?
To: "Thiago Veloso"
Cc: r-sig-geo@stat.math.ethz.ch
Date: Wednesday, 9 June, 2010, 16:00
Look at this. Not sure if this is indeed what you want or if you actually have
to un
Henrique Dallazuanna
Subject: Re: [R-sig-Geo] How to extract coordinates values from a shapefile?
To: "Thiago Veloso"
Cc: r-sig-geo@stat.math.ethz.ch
Date: Wednesday, 9 June, 2010, 15:53
Try:
coordinates(br)
On Wed, Jun 9, 2010 at 3:45 PM, Thiago Veloso wrote:
Dear R colleag
ary(maptools)br<-readShapePoly("BR-map/3.shp")
What I need to do is create a vector which contains all lat and lon values
inside this shapefile...
Thanks in advance,
Thiago Veloso.
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Dear R colleagues!
I´d like to start my participation in this list by describing my current
problem: inside my area of study I need to compare precipitation data from two
different sources: both station (total of 86) and a grid (at 8km) of satellite
estimates.
My specific objective is to inte
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