geoR -- bins in experimental semivariogram
Please express in R what you have done (see http://www.r-project.org/posting-guide.html) Am 27.04.2012 12:13, schrieb GEMA FERNANDEZ-AVILES CALDERON:
Dear list: I have a 5x5 regular grid 100x100. When constructing the experimental semivariogram using gerR() I expected to have 14 different distances. However, I obtained 10 semivariogram points corresponding to 10 bins. - Which is exactly a bin?
the lag class (an interval on the real line of distances over which the semivariances are averaged).
- Which is the bin correspondence wiht the 14 initial distances.
that depends on what you refer to with "14 initial distances".
- Why don't the first bin is not exactly 25?
I suspect because you did not specify it that way (i.e. first lag class corresponding to [0,25)). Tom
- The dataset is the following. Thanks in advance, Gema #########################################3 x y dat 0 0 19.64253569 25 0 20.67413804 50 0 11.39907369 75 0 8.721311665 100 0 14.19476285 0 25 9.755908087 25 25 18.9788189 50 25 14.05059221 75 25 11.76423327 100 25 10.42562093 0 50 6.559737009 25 50 4.882232635 50 50 10.7619423 75 50 9.096456345 100 50 10.6894209 0 75 14.87976528 25 75 5.372505287 50 75 5.712214162 75 75 4.431458459 100 75 15.69477576 0 100 12.77014999 25 100 1.366809445 50 100 4.359141225 75 100 6.607783644 100 100 10.25674201 Gema Fern?ndez-Avil?s Department of Statistics Faculty of Law and Social Sciences University of Castilla-La Mancha at Toledo http://www.uclm.es/profesorado/gemafaviles/ [[alternative HTML version deleted]]
_______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
Technische Universit?t M?nchen Department f?r Pflanzenwissenschaften Lehrstuhl f?r Gr?nlandlehre Alte Akademie 12 85350 Freising / Germany Phone: ++49 (0)8161 715324 Fax: ++49 (0)8161 713243 email: tom.gottfried at wzw.tum.de http://www.wzw.tum.de/gruenland