I can't read this Brazilian (Portugese :)), but it seems that the
distance calculation is in error (possibly some coordinates were missing
causing distance calculation yield NA/NaN/Inf value), which leads to
distance not being able to calculated.
Like Edzer mentioned, if a sample set of your data is provided, we might
be able to track the source.
Hope this helps.
Best,
Danlin
Edzer Pebesma wrote:
It is no problem for us to read all this Brazilian (eh, sorry,
Portugese), but it is hard to reproduce your error without having
access to your, or similar, data.
--
Edzer
Raphael Saldanha wrote:
Olá Virgínia!
Legal ver brazileiros nessa lista! Vou dar uma olhada no seu problema
e lhe
escrevo.
On Tue, Nov 11, 2008 at 10:06 AM, Virginia <[EMAIL PROTECTED]> wrote:
I have some questions:
I got an error. I dont't know why.
Somebody to help me?
Thanks,
Virginia Ragoni
require(spgwr)
require(foreign)
x <- read.shape("cidade.shp")
plot(x)
mappolys <- Map2poly1(x,as.character(x$att.data$ID9100),raw=FALSE)
mapbbs=Map2bbs(x)
mapcents=get.Pcent(x)
tab= x$att.data
# cálculo da largura da banda
sjc.bw <- gwr.sel((tab$TX_CRESC~tab$LOGDEN),data=tab,coords=mapcents)
# error - Erro em spDistsN1(bbox, bbox[2, ], longlat) :
# NA/NaN/Inf em chamada de função externa (argumento 1)
sp.gauss <- gwr((tab$PERIDOSO~tab$PERREN20),data=tab,coords=mapcents,
bandwidth=sjc.bw, hatmatrix=TRUE)
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--
___________________________________________
Danlin Yu, Ph.D.
Assistant Professor
Department of Earth & Environmental Studies
Montclair State University
Montclair, NJ, 07043
Tel: 973-655-4313
Fax: 973-655-4072
email: [EMAIL PROTECTED]
webpage: csam.montclair.edu/~yu
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