Re: [R-sig-Geo] Crop / clip a SpatialPixels* object

2013-06-22 Thread Edzer Pebesma
://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de ___ R-sig-Geo

Re: [R-sig-Geo] distance units in zerodist function (sp)

2013-06-26 Thread Edzer Pebesma
-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de ___ R-sig-Geo mailing list R-sig-Geo@r-project.org

Re: [R-sig-Geo] How to compute an average year on time series ?

2013-06-27 Thread Edzer Pebesma
. [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151

Re: [R-sig-Geo] what's new in asdar latest edition?

2013-07-01 Thread Edzer Pebesma
reasons I'd have to buy the newest edition. New chapters, content? Mathieu [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma

Re: [R-sig-Geo] Regression kriging or kriging with external drift

2013-07-09 Thread Edzer Pebesma
version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251

Re: [R-sig-Geo] help for show.vgms

2013-07-11 Thread Edzer Pebesma
color of variograms in show.vgms()? Best, Saman. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] Package for fitting spatial model on large dataset

2013-07-16 Thread Edzer Pebesma
/mailman/**listinfo/r-sig-geohttps://stat.ethz.ch/mailman/listinfo/r-sig-geo [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] spplot: correct display of data minimum in colour key

2013-07-18 Thread Edzer Pebesma
list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP

Re: [R-sig-Geo] Regression kriging error

2013-07-19 Thread Edzer Pebesma
Ikoyi [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253

Re: [R-sig-Geo] zerodist() fails with Projected Data

2013-07-22 Thread Edzer Pebesma
. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http

Re: [R-sig-Geo] gstat: Cokriging with unusual neighbourhood choice - is this possible?

2013-07-23 Thread Edzer Pebesma
https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP SIGNATURE- Version: GnuPG

Re: [R-sig-Geo] Problem with spTransform() function

2013-07-24 Thread Edzer Pebesma
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 07/24/2013 02:37 PM, ASANTOS wrote: proj4string(SP) = CRS(+proj=utm +zone=23+south +datum=WGS84 +units=m +no_defs) ## Proje maybe try: proj4string(SP) = CRS(+proj=utm +zone=23 +south +datum=WGS84 +units=m +no_defs) - -- Edzer Pebesma

Re: [R-sig-Geo] How to compute an average year on time series ?

2013-07-25 Thread Edzer Pebesma
, for each pixel, to have a mean year (23 values). So each value will be an average of the EVI at the same date for the 10 years. Regards, Nicolas. On 27/06/2013 12:34, Edzer Pebesma wrote: Given your data are in obj, did you try mean.yrs = aggregate(obj, year, mean) ? On 06/27

Re: [R-sig-Geo] autoKrige: singular matrix in function LDLfactor

2013-08-11 Thread Edzer Pebesma
. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http

Re: [R-sig-Geo] gstat: Cokriging with unusual neighbourhood choice - is this possible?

2013-08-12 Thread Edzer Pebesma
list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP

Re: [R-sig-Geo] generating coordinates at equal geographical distances

2013-08-31 Thread Edzer Pebesma
R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP SIGNATURE

Re: [R-sig-Geo] SP 1.0-12 install error

2013-09-04 Thread Edzer Pebesma
-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] Fitting variogram model using NLS function in R

2013-09-04 Thread Edzer Pebesma
/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using

Re: [R-sig-Geo] Fitting variogram model using NLS function in R

2013-09-04 Thread Edzer Pebesma
(), and hence don't share your worries. Thank you Moshood On Wed, Sep 4, 2013 at 4:40 AM, Edzer Pebesma edzer.pebe...@uni-muenster.de wrote: did you read the documentation of argument fit.method in function gstat::fit.variogram? On 09/04/2013 02:00 AM, Moshood Agba Bakare wrote: Dear

Re: [R-sig-Geo] Fitting variogram model using NLS function in R

2013-09-05 Thread Edzer Pebesma
Achieved convergence tolerance: 9.79837651e-06 On Wed, Sep 4, 2013 at 11:39 AM, Edzer Pebesma edzer.pebe...@uni-muenster.de wrote: On 09/04/2013 05:50 PM, Moshood Agba Bakare wrote: Dear Dr. Edzer, Yes, I read about the various options of fit.method in gstat manual. The default value

Re: [R-sig-Geo] SP 1.0-12 install error

2013-09-05 Thread Edzer Pebesma
there's any particular need to revert as long as people are aware of the issue and the way to work around it. Thanks, Alex On 09/04/2013 03:35 AM, Edzer Pebesma wrote: Thanks, you are right, sp 1.0-12 depends on R 3.0.0 but claims it doesn't. Ubuntu users are very well served by binary

Re: [R-sig-Geo] R: Intamap and honoring original data

2013-09-07 Thread Edzer Pebesma
-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster

Re: [R-sig-Geo] Inteference of high nugget for dense data

2013-09-12 Thread Edzer Pebesma
.nabble.com/Inteference-of-high-nugget-for-dense-data-tp7584600.html Sent from the R-sig-geo mailing list archive at Nabble.com. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer

Re: [R-sig-Geo] How to do Zonal Statistics after Kriging in R given Shapefile of Polygon

2013-09-13 Thread Edzer Pebesma
of Engineering University of the Philippines http://politicsforbreakfast.blogspot.com No problem can withstand the assault of sustained thinking. - Voltaire - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149

Re: [R-sig-Geo] Note on variogram fitting with polynomial degree

2013-09-17 Thread Edzer Pebesma
-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de -BEGIN PGP SIGNATURE- Version: GnuPG

Re: [R-sig-Geo] Spatiotemporal Analysis

2013-09-26 Thread Edzer Pebesma
factor analysis, by accounting for spatial structure of data? Thank you so much for your inputs. - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] merge Shape file

2013-10-01 Thread Edzer Pebesma
R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] spplot.points: one panel per level of a factor

2013-10-04 Thread Edzer Pebesma
]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081

Re: [R-sig-Geo] R package gstat segmentation fault

2013-10-07 Thread Edzer Pebesma
-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAD3A77F1 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG

Re: [R-sig-Geo] some problems with krigeST

2013-10-09 Thread Edzer Pebesma
the lack of options, but write working and readable code. If you would contribute it, we will include it and acknowledge you! - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] random sampling along contour

2013-10-09 Thread Edzer Pebesma
-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAD3A77F1 -BEGIN PGP SIGNATURE

Re: [R-sig-Geo] gstat anisotropy : multipanel plotting of experiment and model

2013-10-21 Thread Edzer Pebesma
. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo - -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni

Re: [R-sig-Geo] Does sp::coordinates() behave correct?

2013-10-22 Thread Edzer Pebesma
___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] spplot : Computing variances of prediction with log-transformed data in R

2013-10-30 Thread Edzer Pebesma
-transformed-data-in-R-tp7584987.html Sent from the R-sig-geo mailing list archive at Nabble.com. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics

Re: [R-sig-Geo] Projected SpatialLinesDataFrame has a segment spanning the globe

2013-11-01 Thread Edzer Pebesma
) doesn't produce it to begin with? Thanks much, Ryan ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2

Re: [R-sig-Geo] Grid type of sampling in geodata

2013-11-13 Thread Edzer Pebesma
A. [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany

Re: [R-sig-Geo] Kriging

2013-11-13 Thread Edzer Pebesma
]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID

Re: [R-sig-Geo] Combining spatial pixels objects

2013-11-19 Thread Edzer Pebesma
the duplicates. Use carefully, -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] back with cutoff/variogram question

2013-11-24 Thread Edzer Pebesma
data sets with various bounding boxes should confirm this, or you could just look at the code? Barry ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] Spatio-temporal geostatistics with Raster stack

2013-11-26 Thread Edzer Pebesma
, MOD13Q1.A//6_days_EVI, MOD13Q1.A//6_days_EVI, ... Regards, Julio [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] covariance matrix

2013-12-05 Thread Edzer Pebesma
list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc

Re: [R-sig-Geo] another covariance matrix question

2013-12-08 Thread Edzer Pebesma
/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 ___ R-sig-Geo mailing list R-sig

Re: [R-sig-Geo] ggmap::fortify()

2013-12-09 Thread Edzer Pebesma
objects of the latter two classes to data.frame? Agus ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2

Re: [R-sig-Geo] ggmap::fortify()

2013-12-10 Thread Edzer Pebesma
://stat.ethz.ch/mailman/listinfo/r-sig-geo ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany

Re: [R-sig-Geo] variogram model with gstat

2013-12-11 Thread Edzer Pebesma
yield variable? I am confused! Have a look at the attached file for the semivariogram plot. Do I need to detrend before fitting the model? it seems the plot increases monotonically without level off. Please advise. Thank you Moshood -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] covariance matrix for kriging predictions

2013-12-12 Thread Edzer Pebesma
, this is clearly wrong. My feeling is that c0 in the computation of the kriging predictions covariance matrix needs be specified differently, not as a constant, however I haven't sorted out how, so far. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2

[R-sig-Geo] One-Click-Reproduce

2013-12-18 Thread Edzer Pebesma
talking with Elsevier on how to realize this. Suggestions are welcome! I'm grateful to Chris Kray, Gilberto Camara, Christoph Stasch, Roger Bivand, Tom Hengl, Gerard Heuvelink and Daniel Nuest, who all helped with suggestions and improvements. -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] Combining polygons and calculating their area (i.e. number of cells)

2013-12-20 Thread Edzer Pebesma
/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] invalid class “SpatialPolygons” object: non-unique Polygons ID slot values

2013-12-21 Thread Edzer Pebesma
://stat.ethz.ch/mailman/listinfo/r-sig-geo ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster

Re: [R-sig-Geo] problems with plotting STFDF

2013-12-29 Thread Edzer Pebesma
documentation that says these functions can do something sensible with STFDF data? Maybe the code is yet to be written... Barry library(plotKML) showMethods(plotKML) and also ?plotKML confirm what Barry just suggested. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University

Re: [R-sig-Geo] +AFs-R-sig-Geo+AF0- Represent data on map

2014-01-05 Thread Edzer Pebesma
___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni

Re: [R-sig-Geo] problems with plotting STFDF

2014-01-05 Thread Edzer Pebesma
-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description

Re: [R-sig-Geo] Problem about ST kriging in gstat

2014-01-11 Thread Edzer Pebesma
-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795

Re: [R-sig-Geo] From Spatial Points Data Frame to Spatial Polygons Data Frame

2014-01-23 Thread Edzer Pebesma
-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description

Re: [R-sig-Geo] raster::raster from SpatialPixelsDataFrame object

2014-01-23 Thread Edzer Pebesma
command. Thanks Agus ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone

Re: [R-sig-Geo] sp::makegrid() bbox does not fully cover object

2014-01-27 Thread Edzer Pebesma
On 01/27/2014 11:40 AM, Mark Payne wrote: I won't call this a bug, Definitely a bug; will look into it -- thanks for reporting! -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni

Re: [R-sig-Geo] Can coordinate intervals be not constant in SpatialPixelsDataFrame object??

2014-01-27 Thread Edzer Pebesma
delmepx), but wish to understand. Thanks Agus ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2

Re: [R-sig-Geo] call a fortan prog into R

2014-02-06 Thread Edzer Pebesma
In the manuals, http://cran.r-project.org/manuals.html look for and read Writing R extensions. On 02/06/2014 12:12 PM, Abdoulaye Sarr wrote: Hi all, I have a fortan program to compute a climate index at point and is wondering if it is possible to call this function into R and apply to a

Re: [R-sig-Geo] Spacetime regression

2014-02-13 Thread Edzer Pebesma
have coding Friday tomorrow, drop by or send something useful and we might be able to work it out. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795

Re: [R-sig-Geo] Variogram modeling

2014-02-18 Thread Edzer Pebesma
+northing or yield ~1. If there is a strong spatial trend, general advice is to work on the residuals (~easting+northing), and use the same equation in the kriging step (universal or regression kriging). You could try both, if the difference is small, I'd suggest to not detrend (ie., use ~1) -- Edzer

Re: [R-sig-Geo] Variogram modeling

2014-02-18 Thread Edzer Pebesma
increases without level off, then I assume there is a strong spatial trend. Am I right with this approach? Is there a better way of detecting if there is a *strong spatial trend*? Thank you. On Tue, Feb 18, 2014 at 10:19 AM, Edzer Pebesma edzer.pebe...@uni-muenster.de wrote: On 02

Re: [R-sig-Geo] fitting nested structure model variogram using gstat

2014-02-26 Thread Edzer Pebesma
whatever I use as my lag distance as specified by width=7? I don't know what you mean by lag tolerance -- does this term come from the GSLIB literature? gstat::variogram does allow lags to overlap; if you'd want this you'd need to write your own smoother for variogram clouds. -- Edzer Pebesma Institute

Re: [R-sig-Geo] Scaling the scale bar

2014-02-27 Thread Edzer Pebesma
of the scale bar on the map corresponds with 100 kilometers in reality? (It might be too obvious or some other reason I do not get it. It feels already like the dumbest question to myself. So, my apologies in advance.) Cheers, Alex -- Edzer Pebesma Institute for Geoinformatics

Re: [R-sig-Geo] GSTAT ordinary kriging prediction with large observation

2014-02-28 Thread Edzer Pebesma
) Thanks while looking forward to reading your response please. Moshood -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc

Re: [R-sig-Geo] krige function for interpolation - methodology

2014-03-07 Thread Edzer Pebesma
hundred can be used if the unsampled location is within sparse region of the field? prd_ok - krige(id=yield,yield ~ 1, canmod.sp, newdata = grd, model=exp.mod, block=c(10,10),nmax=100) Thanks Moshood -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster

Re: [R-sig-Geo] using spplot to superimpose points and polygons on SpatialGridDataFrame

2014-03-12 Thread Edzer Pebesma
list archive at Nabble.com. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany

Re: [R-sig-Geo] Selecting Random Polygons

2014-03-21 Thread Edzer Pebesma
, 20, type='random') twenty - spsample(nylakes, 20, type='stratified') [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] How to rescale a raster in R?

2014-03-23 Thread Edzer Pebesma
/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] Practical range spatial dependency- Exponential variogram model

2014-03-27 Thread Edzer Pebesma
]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key

Re: [R-sig-Geo] Cross validation fitted models- krige.cv

2014-03-27 Thread Edzer Pebesma
that is not a reason why they should be ignored. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] Error plotting Variogram Map

2014-03-31 Thread Edzer Pebesma
. [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster

Re: [R-sig-Geo] problem with findInterval when mapping in a loop

2014-04-02 Thread Edzer Pebesma
(bins)],2), -, round(bins[-1],2)),cex=0.7, bg=white) } ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics

Re: [R-sig-Geo] gstat model cross validation SSerr vs other diagnostic measures

2014-04-03 Thread Edzer Pebesma
a model? Is SSerr means sum of squares of difference between actual values and predicted values of fitted model? in MSDR, what is difference between residual and kriging variance? formula for computing the kriging variance. Thanks Moshood -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] gstat warning message from cross validate linear model

2014-04-07 Thread Edzer Pebesma
. Thanks Moshood -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] Problem with over() from sp package

2014-04-09 Thread Edzer Pebesma
a coordinate reference, so I switched to readOGR. [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] gstat: Parameter estimate Matern vs exponential variogram model

2014-04-10 Thread Edzer Pebesma
=Matern variogram model) Thanks -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] How to create a SpatialMultiPoints object

2014-04-14 Thread Edzer Pebesma
R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description

Re: [R-sig-Geo] decimals in NA value using raster::writeRaster with .ascii format

2014-04-14 Thread Edzer Pebesma
___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http

Re: [R-sig-Geo] how to construct a variogram map

2014-04-14 Thread Edzer Pebesma
administrative regions. In the former case, you could use spsample to sample points within the polygons; in the second case you may want to assign the attribute values to polygon centroids, e.g. if your object is called pol, by SpatialPointsDataFrame(coordinates(pol), as.data.frame(pol)) -- Edzer

Re: [R-sig-Geo] spplot of SpatialGridDateFrame (sparsely populated with data) fails

2014-04-16 Thread Edzer Pebesma
: 2013-10-15 Title: classes and methods for spatial data Authors@R: c(person(Edzer, Pebesma, role = c(aut, cre), email = edzer.pebe...@uni-muenster.de), person(Roger, Bivand, role = aut, email = roger.biv

Re: [R-sig-Geo] Overlay Spatial Points Data Frame over Raster Layer

2014-04-17 Thread Edzer Pebesma
/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] projection of ggmap:get_map() output

2014-04-24 Thread Edzer Pebesma
and ggmap: layer could actually be wrong as well. I'm going to test on a more local area and let you know. Agus ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] projection of ggmap:get_map() output

2014-04-24 Thread Edzer Pebesma
to the code I just showed, it is not clear at all that the matrix provided in the ggmap raster object is in epsg:4326. Agus On Thu, Apr 24, 2014 at 10:21 AM, Edzer Pebesma edzer.pebe...@uni-muenster.de mailto:edzer.pebe...@uni-muenster.de wrote: EPSG:4326

Re: [R-sig-Geo] plotting STSDF objects

2014-05-05 Thread Edzer Pebesma
stplot where object x is of class STSDF Thank you very much for your help! Best, [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma

Re: [R-sig-Geo] projection of ggmap:get_map() output

2014-05-06 Thread Edzer Pebesma
=height, default.units='native'), under=TRUE) ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] practical range for kriging interpolation or not

2014-05-14 Thread Edzer Pebesma
e.g. by cross validation. -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] spplot: how to group the variables according to a factor?

2014-05-19 Thread Edzer Pebesma
, because x and y are factors, and my polygons have numeric values. Any suggestions will be appreciated. Best regards, -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de

Re: [R-sig-Geo] gstat cross validation for accuracy ordinary kriging vs IDW

2014-05-25 Thread Edzer Pebesma
deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081

Re: [R-sig-Geo] (Linear) interpolation in three (or more) dimensions

2014-06-03 Thread Edzer Pebesma
know of a function that supports three or more dimensions? Mark [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] Co-kriging

2014-06-04 Thread Edzer Pebesma
://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital signature

Re: [R-sig-Geo] Spacetime variogram - non square cells

2014-06-07 Thread Edzer Pebesma
-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795

Re: [R-sig-Geo] Clarification on cross validation fitted variogram model

2014-06-07 Thread Edzer Pebesma
, nugget = nugget) exp.mod-fit.variogram(empvar,model = exp.var) Cross validation of the variogram models by ordinary kriging exp.kcv - krige.cv http://krige.cv(yield ~ 1, canocrop.sp, *model = ???*,nmax = 20, nfold= 5) Thank you. -- Edzer Pebesma Institute for Geoinformatics

Re: [R-sig-Geo] Choropleth map

2014-07-03 Thread Edzer Pebesma
[[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster

Re: [R-sig-Geo] write.tgrass (spacetime) does not create init.txt

2014-07-07 Thread Edzer Pebesma
, already does the job itself :) Thanks much! Best, Vero [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute

Re: [R-sig-Geo] write.tgrass (spacetime) does not create init.txt

2014-07-13 Thread Edzer Pebesma
has relative time, otherwise it can be left out. I noticed that the reader expects always absolute time, is it possible to support relative time as well? Best regards Soeren 2014-07-07 18:46 GMT+02:00 Edzer Pebesma edzer.pebe...@uni-muenster.de: Thanks for the clear report, Veronica

Re: [R-sig-Geo] parallel version of krige or krigeST please

2014-08-02 Thread Edzer Pebesma
-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital

Re: [R-sig-Geo] Error gstat function krigeST

2014-08-03 Thread Edzer Pebesma
-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251 83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795 signature.asc Description: OpenPGP digital

Re: [R-sig-Geo] Copulas and spatial modeling

2014-08-03 Thread Edzer Pebesma
* *HydroFocus, Inc. 530-759-2484* [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University

Re: [R-sig-Geo] space time error message

2014-08-03 Thread Edzer Pebesma
solve this urgent issue. Best regards, eus [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi

Re: [R-sig-Geo] space time error message

2014-08-08 Thread Edzer Pebesma
Error in ST(sp, time, endTime) : time is not a time based class If doable with other package also will be fine for me. asarr On Sun, Aug 3, 2014 at 9:40 AM, Edzer Pebesma edzer.pebe...@uni-muenster.de wrote: Please provide a small, reproducible example. Wbr, On 07/26/2014 08:29 PM

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