[R-sig-Geo] Use estimateAnisotropy by intamap package
Edzer Pebesma
edzer.pebesma at uni-muenster.de
Sun Apr 18 13:28:58 CEST 2010
An example, building on example(estimateAnisotropy), is:
library(intamap)
data(sic2004)
coordinates(sic.val)=~x+y
estimateAnisotropy(sic.val,formulaString=joker~1)
I'd agree that "formula" would have been a better name for the third
parameter than "formulaString", as a string is not allowed here (this
matches the docs, btw). For your convenience,
estimateAnisotropy(sic.val,formula=joker~1)
also works, by R's partial matching of argument names.
--
Edzer
Yong Li wrote:
> Dear All,
>
> I tried to inspect the geometric anisotropy by using the function of estimateAnisotropy with parameter "formulaString" in intamap, but never worked.
> Any help will be highly appreciated.
>
> Cheers,
>
> Yong
>
>
> -----Original Message-----
> From: r-sig-geo-bounces at stat.math.ethz.ch 代表 r-sig-geo-request at stat.math.ethz.ch
> Sent: 2010-4-18 (星期日) 20:00
> To: r-sig-geo at stat.math.ethz.ch
> Subject: R-sig-Geo Digest, Vol 80, Issue 18
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> Today's Topics:
>
> 1. Variogram models in gstat (Sidney Bernal)
> 2. Re: Variogram models in gstat (Edzer Pebesma)
> 3. Re: sp, area and SpatialPolygons (Roger Bivand)
> 4. Re: Help needed with spplot (Thomas Adams)
> 5. Re: sp, area and SpatialPolygons (Patrick Giraudoux)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 17 Apr 2010 10:37:15 -0500
> From: Sidney Bernal <sidney86_115 at hotmail.com>
> To: <r-sig-geo at stat.math.ethz.ch>, Sidney Bernal
> <sidney86_115 at hotmail.com>
> Subject: [R-sig-Geo] Variogram models in gstat
> Message-ID: <SNT117-W61894D6D8AA733D868DD48A70D0 at phx.gbl>
> Content-Type: text/plain
>
>
>
>
> Good Morning
>
> Today I make a geostatistics course, so I'm using R 2.10.1 and I am writing to ask the please of the mathematical formulas of the 19 models of covariogram variogram programmed in the gstat package.
>
> short long
> 1 Nug Nug (nugget)
> 2 Exp Exp (exponential)
> 3 Sph Sph (spherical)
> 4 Gau Gau (gaussian)
> 5 Exc Exclass (Exponential class)
> 6 Mat Mat (Matern)
> 7 Ste Mat (Matern, M. Stein's parameterization)
> 8 Cir Cir (circular)
> 9 Lin Lin (linear)
> 10 Bes Bes (bessel)
> 11 Pen Pen (pentaspherical)
> 12 Per Per (periodic)
> 13 Hol Hol (hole)
> 14 Log Log (logarithmic)
> 15 Pow Pow (power)
> 16 Spl Spl (spline)
> 17 Leg Leg (Legendre)
> 18 Err Err (Measurement error)
> 19 Int Int (Intercept)
>
> Awaiting your prompt response.
>
> Sidney Bernal
> sidney86_115 at hotmail.com
>
>
>
> Sidney Bernal
>
>
> _________________________________________________________________
>
>
> e=wlmailtagline
> [[alternative HTML version deleted]]
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 17 Apr 2010 18:47:43 +0200
> From: Edzer Pebesma <edzer.pebesma at uni-muenster.de>
> To: Sidney Bernal <sidney86_115 at hotmail.com>
> Cc: r-sig-geo at stat.math.ethz.ch
> Subject: Re: [R-sig-Geo] Variogram models in gstat
> Message-ID: <4BC9E62F.1090607 at uni-muenster.de>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Most of them can be found on page 38 of http://www.gstat.org/gstat.pdf
>
> The Mat / Ste models are e.g. described in M. Stein, "Interpolation of
> Spatial Data: Some Theory for Kriging", Springer.
>
> Let me know if there are further descriptions missing.
> --
> Edzer
>
> Sidney Bernal wrote:
>>
>> Good Morning
>>
>> Today I make a geostatistics course, so I'm using R 2.10.1 and I am writing to ask the please of the mathematical formulas of the 19 models of covariogram variogram programmed in the gstat package.
>>
>> short long
>> 1 Nug Nug (nugget)
>> 2 Exp Exp (exponential)
>> 3 Sph Sph (spherical)
>> 4 Gau Gau (gaussian)
>> 5 Exc Exclass (Exponential class)
>> 6 Mat Mat (Matern)
>> 7 Ste Mat (Matern, M. Stein's parameterization)
>> 8 Cir Cir (circular)
>> 9 Lin Lin (linear)
>> 10 Bes Bes (bessel)
>> 11 Pen Pen (pentaspherical)
>> 12 Per Per (periodic)
>> 13 Hol Hol (hole)
>> 14 Log Log (logarithmic)
>> 15 Pow Pow (power)
>> 16 Spl Spl (spline)
>> 17 Leg Leg (Legendre)
>> 18 Err Err (Measurement error)
>> 19 Int Int (Intercept)
>>
>> Awaiting your prompt response.
>>
>> Sidney Bernal
>> sidney86_115 at hotmail.com
>>
>>
>>
>> Sidney Bernal
>>
>>
>> _________________________________________________________________
>>
>>
>> e=wlmailtagline
>> [[alternative HTML version deleted]]
>>
>> _______________________________________________
>> R-sig-Geo mailing list
>> R-sig-Geo at stat.math.ethz.ch
>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>
>
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--
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Weseler Stra?e 253, 48151 Münster, Germany. Phone: +49 251
8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
http://www.52north.org/geostatistics e.pebesma at wwu.de
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