similar to: opendap/dods data retrieval

Aloha, I just made some quick hacks on the configure script with the 'ncdf' package to make it link with the opendap/dods libraries (opendap.org) rather than the netcdf api library. Basically, this allows a user to interact in R with a remotely served dataset as if it were a netcdf file on the local filesystem (read-only). Functionality with local files should continue to work as

Dear R-listers, I would like to know if there is a way to programmatically generate parameter start values for the model y~(a*exp(b*x)+c*exp(d*x)) in R. I've scoured the help files and archives for nls() and similar searches, and have read Fox 2002 - the best advice has been to make estimates from a priori knowledge of the data. However, in the Matlab CurveFit tool, reliable start values are

Hello, I've been searching for a method of converting Lat/Lon decimal coordinates into actual distances between points, and taking into account the curvature of the earth. Is there such a package in R? I've looked at the GeoR package, but this does not seem to contain what I am looking for. Ideally the output would be a triangular matrix of distances. Thanks in advance, Paul Brewin

I am in the process of converting from Matlab to R, but a major sticking point for me at the moment is accessing data via OPeNDAP. After several hours of searching, I found that other people have discussed this functionality in the past, but it does not appear to have yet been developed. One programmer, Luke Miller, has managed a work-around by downloading ascii data from an OPeNDAP site (

Hi: Russ Moffit of our Honolulu Lab has made a modification to the R netcdf package 'ncdf' so that it can access remote netcdf files using OPenDAP (http://www.opendap.org). The package works on Linux, and with help from Don MacQueen was also ported to Macintosh OS X. We have had a lot of demand for this to be ported to Windows also, but it is beyond our capabilities. If there is

> > Hi, > > I used > GDALinfo("MOD13Q1.A2001049.h13v11.005.2007002215512.250m_16_days_EVI.tif") and > got the results: > > rows 10 > columns 11 > bands 1 > origin.x 150701.4 > origin.y 7744897 > res.x 250 > res.y 250 > ysign -1 > oblique.x 0 > oblique.y 0 > driver GTiff >

I've got matlab installed: < M A T L A B (R) > Copyright 1984-2009 The MathWorks, Inc. Version 7.8.0.347 (R2009a) 64-bit (glnxa64) February 12, 2009 I want to install loaddap. I downloaded an rpm from

I have this https://echange-fichiers.inra.fr/get?k=6TdTdezNeZwAqJtpwVm grib file which is a regular lat-lon 0.25x0.25 degrees and contains 4 fields . I tried to open it using : grib <- readGDAL("C:\\Users\\aalyaari\\Desktop\\Vol_025_H14_2010060700.grib") but I got this error: C:\Users\aalyaari\Desktop\Vol_025_H14_2010060700.grib has GDAL driver GRIB and has 721 rows and

Dear R Users - R is a wonderful software package. CRAN provides a variety of tools to work on your data. But R is not apt to utilize all the public databases in an efficient manner. I observed the most tedious part with R is searching and downloading the data from public databases and putting it into the right format. I could not find a package on CRAN which offers exactly this fundamental

Folks: I am getting a build failure when I: #' @importFrom utils shortPathName which roxygenizes it to the NAMESPACE. I suspect this is because this particular function is Windows-only, but I'm a bit confused how I should "properly" importFrom a function like this so it doesn't cause a build failure, but I don't get a note in my R CMD CHECK if I DON'T have it:

Most of my games like BF2 and any source games like hl2/css/dods and all my command and conquer games will crash to (all get to the loading sceen on the source games and then it will crash) . When i go to play the game it will close(some what) and i will be back at my desktop but the ubuntu system monitor will show the game and i will have to end it from there and from what i have seen i can only

Hi I''m currently learning how AJAX is working and found prototype.js interesting. But I have some issues that might be because of misusage: http://brasilia.nersc.no/test/PyTest/AJAX.html When I use this in Firefox2 it correctly fills the first select, using opera9 it is filled, but it just shows a list of "blank" options (no description), and in IE6 it doesn''t get

library(rgdal) my_asc=dir("~/Pulpit/dods/karol/TVDI 113_121",pattern=".asc",recursive=T,full.names=T) for (i in 1:length(my_asc)) { r <- readGDAL(my_asc[i]) z <- as.matrix(r) vectordata[i] <- mean(z) vectordatamax[i] <- max(z) vectordatamin[i] <- min(z) vectordev[i] <- sd(z,na.rm=True) hist(z)

R-geographers... I'm trying to solve a problem to implement a line-by-line tiled processing using RGDAL (read 1 line of an image, process the one line, write one line of the image to a binary file). Everything except for the final step I'm able to do using a combination of RGDAL and r-base commands. Below is the basic structure, the input file "elev" can be any image file

Dear sirs, In the configuration of Dovecot I can?t get autentication of the users. My work environment is: OpenBSD 3.8 Postfix 2.2.5 (instaled thru ports with ldap and sasl support) Opendap 2.2.27 (instaled thru ports with sasl support) Dovecot 0.99.14 (instaled thru source with ldap support) I have two domains in ldap, the postfix is just autenticating in ldap (sending e-mails to users of 2 ldap

Dear all, I have a so large image (43,000 x 18,000 pixels) and I need clip this image with a smallest one (1000x1000 pixels). I can read the second image using rgdal package. But the first image can´t be read on my system because if memory limitation (I have about 2GB availabe). So I would like hear from you if anyone have some suggestin in this regards. I have also ArcGis 8.6 ans Erdas 8.3

I am trying to install the rgdal package on my Mac OS X 3.9. I downloaded and installed the GDAL libraries from Fink and then tried to install rgdal and got the following message. I tried to determine if the GDAL libraries were in my path but I'm not sure how to do that. Any ideas? Thanks. trying URL 'http://www.biometrics.mtu.edu/CRAN/src/contrib/rgdal_0.4-10.tar.gz'

I am not new to R, but I am new to .grib files. I am downloading some climate data and I would like to analyze it in R. R has a nice netcdf package, but I don?t see any package available to deal specifically with grib files. I see a few posts from other people using grib files in R. However, I was unclear if they used grib files in a different software program and then imported the data

Hi, I wonder if there is specific requirement or restriction for the decoder in order to be consider "Vorbis" compliant (or let's say, to be a "correct" vorbis decoder). I am experimenting with integerized libvorbis and the decoder delivers the audio data as following, (and compare with the floating point version below). $ tail audioout-int.txt 0290670 025e 085c 02cf 0895

I've got Samba 2.2.2 and winbind up and running fine between a TurboLinux server and an NT 4.0 PDC. I can "chown" files on the linux box fine using "$chown DOMAIN+username filename" but when i try to change an objects group using "$chgrp DOMAIN+groupname filename" i get errors stating that it is an invalid group name. What's the deal here? None of my group