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18 results for “from:caspar hallmann”

predict() LDL error
caspar hallmann · Jul 18, 2011 · r-sig-geo

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Bounding box for spplot?
caspar hallmann · Mar 2, 2010 · r-sig-geo

Dear list, How would one remove the bounding box (the equivalent of 'frame.plot' in plot.default) in a spplot? Thanks in advance, Caspar

Bounding box for spplot?
caspar hallmann · Mar 2, 2010 · r-sig-geo

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avoid plot frame (bounding box) in spplot
caspar hallmann · Jul 21, 2011 · r-sig-geo

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CRS: list of datum?
caspar hallmann · Oct 10, 2010 · r-sig-geo

HI Agus, see A=make_EPSG() A in rgdal Caspar On Sun, Oct 10, 2010 at 10:36 PM, Agustin Lobo <alobolistas at gmail.com> wrote: > HI! > > While >> CRS("+proj=utm +zone=32 +datum=WGS84") > CRS arguments: > ?+proj=utm +zone...

Note on variogram fitting with polynomial degree
Caspar Hallmann · Sep 17, 2013 · r-sig-geo

Dear all, I read in ASDAR: "Residual variograms are calculated by default when a more complex model for the trend is used..." However, I noticed that when using fit.variogram in gstat with an additional option: degree=2, but keeping...

Question of ppm warnings of print.ppm
caspar hallmann · Sep 24, 2010 · r-sig-geo

Dear list, I am attempting to fit an inhomogeneous poisson point process to some point pattern data, using ppm from spatstat (v 1.17-5). I have been found guilty of having NA values in my covariate-images(a categorical...

Inverting the scale in heat.colors
caspar hallmann · Sep 12, 2010 · r-sig-geo

use colorampPalette(). You can define your own colors in any order. something as in : plot(1:10,1,col= colorRampPalette(c("blue", "red"))(10) hope it helps Caspar On Sun, Sep 12, 2010 at 3:05 PM, Manuel Sp?nola...

Question of ppm warnings of print.ppm
caspar hallmann · Sep 27, 2010 · r-sig-geo

Hi Adrian, you are right, the latest version does not behave like that. Thanks a lot Caspar On Mon, Sep 27, 2010 at 11:57 AM, Adrian Baddeley <adrian at maths.uwa.edu.au> wrote: > caspar hallmann <caspar.hallmann at...

obtaining row indexes from a list of column indexes
caspar hallmann · Nov 17, 2010 · r-sig-geo

Edzer, say m is your matrix of TRUE's and FALSE's, then: which(m,arr.ind=TRUE) will give you the column and row numbers of the matrix satisfying the conditions supplied to which. Hope it helps Caspar On...

writeOGR issue in dbf
caspar hallmann · Mar 18, 2010 · r-sig-geo

Dear list, I am using writeOGR to create an ESRI shapefile from a SpatialPointsDataFrame. When opening the shapefile in ArcMap and ask for the attributes, I get an error "A column was specified that does not exist". Similarly, when opening...

R crash with readOGR
caspar hallmann · Feb 12, 2010 · r-sig-geo

Dear All, Perhaps one can help me with the obvious, however I have been trying to import a shapefile using function readOGR as in: myshp<-readOGR("mydirectorypath", "shapefilename"), and without any warning (e.g. can't allocate memory size or...

how to do randomly sampling in raster layer
caspar hallmann · Aug 3, 2010 · r-sig-geo

Dear Mao, You can use function rpoint from spatstat, after converting your raster object into a pixel image. consider the following: library(raster) library(spatstat) library(maptools) library(sp) # An arbitrary raster r <- raster(system.file("external/test.grd", package...

Note on variogram fitting with polynomial degree
Caspar Hallmann · Sep 17, 2013 · r-sig-geo

Hi Edzer, Thanks for the clarification. Well, ideally, I think variogram() should be made possible to account for "degree". Alternatively a simple note in the help file for variogram along the lines "NOTE: degree is not used in variogram(), Use...

sample size mixed poisson glm
caspar hallmann · Mar 25, 2010 · r-help

Dear list members, I am trying to estimate power/sample size based on already collected pilot data. The setting: Five orchards have been sampled with respect to fruit damage. In each orchard two plots were selected (semi-randomly), where one...

R crash with readOGR
caspar hallmann · Feb 12, 2010 · r-sig-geo

Hi Roger, Thank you for your very quick response. This surely helps... Perhaps however I should have emphasized: "without" any warning, the thing being that I 'suspected' this is a memory issue. What happened is that after submitting the code...

Heteroskedasticity and different Spatial Weigth Matrices
caspar hallmann · Sep 24, 2010 · r-sig-geo

Hi Angela, an idea might be to use gls with some proper variance function (say varPower). Then take the pearson residuals for you Morans tests. my 2 cents Caspar On Fri, Sep 24, 2010 at 4:23 PM, Angela Parenti...

negative r-squares
caspar hallmann · Sep 9, 2010 · r-sig-geo

This raises a question though whether one should use the mean of the training data or the mean of the test data in calculating the total sum of squares. I believe the first is more fair with respect to answering...

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