Hi All:
I am trying to write a 3-dimensional big netcdf file with the ncdf4 package.
I found that when the length of the variable is larger than 2^31 (or file
size larger than 16 GB), it will show an error "ncvar_put doesn't support
long vector yet". Is that the limitation of the ncdf4 package
: Jianhua Huang
Cc: r-sig-geo@r-project.org
Subject: Re: [R-sig-Geo] weird ncdf4 output 9.969210e+36
Hi,
This is the number for missing value in most of NetCDF files.
http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#Missing%20Data%20Values
This means you missed to provide/utilize
Hi All:
I am trying to create a 3 dimensional (200*200*8760) netCdf file using the
ncdf4 package. Everything goes fine, except some unexpected outputs. Here is
tail of the result in one grid cell. I cbind the original values and the
output read from the nc file.
Origin
Hi all:
I am using the precipitation (pr) data from rcm3-cgcm3 model. I used the
ncdf4 package to open the precipitation data. Some values are very close to
zero, for example 3*10^(-23), and there are even some negative values (like
-3*10^(-21)). Should I treat these values as zero? I don't kn
Dear All:
I am trying to use the gstslshet function to generate the estimate the sarar
model. However, there is an error occur as following:
Error in solve.default(crossprod(reg)) :
system is computationally singular: reciprocal condition number =
4.38039e-25
Is there anyone ever
Hi All:
I am doing some spatial analysis with the spdep package. Could anyone
suggest some functions to perform robustness (outlier etc) for the data?
Thanks, and any help is appreciated.
Joshua
[[alternative HTML version deleted]]
Hi Danlin:
Thanks. It is very helpful.
Jianhua
-Original Message-
From: Danlin Yu [mailto:y...@mail.montclair.edu]
Sent: 2011年4月12日 13:10
To: Jianhua Huang
Cc: r-sig-geo@r-project.org
Subject: Re: [R-sig-Geo] get the centroids of the polygones
Jianhua:
Well, I happen to have ArcGIS
tell whether the returned value is exactly the one I need. Here is the
introduction: http://127.0.0.1:27343/library/sp/html/coordinates.html
Thanks again for your help.
Jianhua
-Original Message-
From: Danlin Yu [mailto:y...@mail.montclair.edu]
Sent: 2011年4月12日 12:36
To: Jianhua Huang
Hi Everyone:
I am trying to get the centroids of all the polygons in the shape file.
I use the following code:
library(spdep)
library(maptools)
cte <- readShapePoly("cte2007.shp",IDvar=NULL)
get.Pcent(cte)
But there is an error when I run get.Pcent (Error: could not find functio