Displaying 20 results from an estimated 500 matches similar to: "hdf-files"
2010 Jul 23
1
calculate slope of line
Dear All,
I fear that this is a really easy question but I do seem to go around in
circles..
I have 2 points on a plot and would like to calculate the slope of the
line drawn through these 2 points.
that cant be so hard?!
Thank you in advance,
Katrin
--
Katrin Fleischer
Vrije Universiteit Amsterdam
Faculty of Earth and Life Sciences
Subdepartment Hydrolgy and Geo-Environmental Sciences
Room
2010 Jul 20
2
data from SpatialGridDataFrame
Dear All,
I have a raster map of the class 'SpatialPointsDataFrame' and coordinates
of the class 'SpatialPoints'. I would like to retrieve the values that are
contained in the raster map at the specific locations given by the
coordinates.
Can anyone help me out?
Kind regards,
Katrin Fleischer
2010 Jan 26
2
hdf files
hello,
I have a problem to open an hdf file. i have downloaded the package 'hdf5' as it was advised on R seek. But when i try to load the file, the R console sends me an eror message:
setwd("C:/Documents and Settings/Karine/Bureau/data/")
#install.packages('hdf5')
library("hdf5")
sea_ice <- hdf5load("asi-s6250-20090704-v5i.hdf", load =
1998 Nov 20
2
R and hdf
Hi,
I've been playing with R for only a few days, so I'm not terribly
familiar with it yet. Has anyone ever done any work using HDF or
NetCDF files with R? Both file formats have libraries which can be
linked to a program to read and write data to these formats. Is this
sort of thing possible with R? We are planning to use the HDF format to
store experimental data collected by some
2008 Oct 15
2
apply model predictions over larger area with predict()
Dear all,
I have built glm models based on presences/absences and a number of
predictor maps and would like to compute habitat suitability based on
the modelled coefficients.
I thought this is pretty straight forward and wanted to use predict()
and supply the new data in a data frame, with one column for each
predictor.
However, I do get an error msg warning me that the number of rows for
1999 Mar 29
1
Can R read NCSA's HDF?
I'm an R newbie, so please forgive if this question has been
asked and answered many times before on this mailing list. I
can't find anything in the manual (Notes or R), the FAQ or on
CRAN, so...
Has anyone implemented an interface so R can read NCSA's HDF?
--
Terry J. Westley, Principal Engineer
Veridian Engineering, Calspan Operations
P.O. Box 400, Buffalo, NY 14225
twestley at
2011 Mar 16
2
how do we read netcdf / hdf files in R?
Dear R Users,
How do we read netcdf / hdf format files in R ?
Also, can we convert netcdf to hdf format in R?
Great Thanks,
Best Regards,
Yogesh
[[alternative HTML version deleted]]
2012 Apr 21
1
hdf library for windows
The question puzzled me at first, because of your use of "library". It
looks as if the hdf5 r "package" utilises the "windows hdf5 library"
binary.
My reading is that you will have to compile the package yourself after
you have downloaded the hdf windows dll from hdf.ncsa.uiuc.edu The
instructions are in win.readme.txt of the package source which you can
download at
2003 Dec 01
1
hdf library for windows
Hi,
Is there a version of the hdf library for windows?
Cheers
Toby
2008 Sep 24
1
looping through variables
Hello everyone,
I have the following problem:
My analysis includes many predictor variables (>50) in the form of
raster maps (asc), but I am trying to avoid having to type all their
names over and over again in the analysis (e.g. for vectorisation, for
deletion of NA's, etc.)
So ideally I would like to store them in some way that their names
only have to be typed once and can always
2013 Jan 15
1
Using system() to dump HDF to text file?
Hi all --
I am working on 64-bit Windows XP. I'm not a very technical person when it
comes to the command line stuff, so please forgive me if this is a stupid
question.
I have a bunch of HDF files, and I want to dump a single PM25 data layer
from each file to .txt by invoking ncdump.exe from system(). Here's a
sample command string:
"C:/ncdump -v PM25 C:/01aug2010.hdf >
2006 Jun 07
2
how to read hdf files under R?
Hi!
I am trying to install in my R environment the rhdf5 package and
library but it seems to have vanished from either the CRAN or
BioConductors sites.
Can you tell me where it would be possible to find it or any R
library (or function) able to read hdf files?
Sincerely,
Nicolas Degallier
UMR 7159 / IRD UR182
Laboratoire d'Oc?anographie et du Climat, Exp?rimentation et
Approches
2010 Apr 07
1
samba server file read size limit of 64MB for HDF files
Sorry if that's a vague subject, but this problem is a little weird and I'm just wondering if there are any suggestions out there.
We've got a Samba server (3.0.23) running on a CentOS 5.3 server offering up a data share of 7TB on an XFS filesystem. The authentication all happens through a Samba PDC with an LDAP backend all on a different server. The system in question is just a
2002 Mar 01
1
HDF 5 install - how to pass configure flag to the R CMD command
The basic question is: How can I pass configure script command line flags
from the R CMD command?
Now I try to install the HDF5 package on Linux (SuSE 7.3).
I got hdf5 libraries installed in /usr/local/hdf5 (man/lib/bin).
I understood to install packages the following way:
as root# R CMD INSTALL hdf5_1.4.7.tar.gz
Installing source package `hdf5' ...
checking for gcc... gcc
checking for
2009 Dec 14
2
hdf5 package
Hi all,
I'm testing the use of the hdf5 R library under Windows XP.
With some simple example (an R list with several subobjects as showed in
the examples in the library) the library exports and imports .hdf files
adequately. However, if I try to open the exported file with another
program (HDFView 2.5) I receive the message that the file is an
unsupported format. HDFView 2.5 does not seems to
2009 Mar 19
2
Package HDF5
The package works fine, but it seems not to provide access to fields,
but only to the whole data in a certain file (function hdf5load(file,
load = TRUE, verbosity = 0, tidy = FALSE))
Since hdf5 organizes the data and metadata in a hierarchical
structure, we must explore in our problem (file>7GB), but it seems not
possible with the functions in the package.
Any suggestions? Please, let me know
2001 Apr 10
2
clear R-objects inside a function?
Using RedHat Linux 7.0, R-1.2.2, R-hdf5-1.2 library,
I want to load a dataset, do some stuff with it, then erase its objects,
get an other, repeat. My friend wrote a function which tried to clear
away all the objects. At the end, it uses rm() to remove objects. This
is the same way we do it interactively, from the R prompt:
testLoadSeveralHDF <- function(numFiles) {
for (i in
2013 Feb 04
1
Problem loading hdf5 file
*Hi everyone, I am a new subscriber, so I hope I'm posting in the right way.
I need to load a hdf5 file, so I installed the hdf5 libraries ad the hdf5 R
package; in downloaded a small sample file from the hdf5 website and I
could correctly load it. But when I try to load my file:
*
require(hdf5)
rm(list=ls())
ls()
hdf5load("my_file.h5", verbosity=3)
*I get this error message:
*
1999 Nov 22
2
netCDF and/or HDF4/5 interfaces for R?
Hi,
I was wondering whether there are interfaces to netCDF, HDF4,
or HDF5 for "R".
Thanks,
Thomas.
tmb-r-project at lumo.com
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2011 Mar 04
2
Fixing the HDF5 package: the on.exit mystery
Dear all,
I'm trying to fix a subtle bug in the hdf5 package. This package provides an
interfaces to the HDF5 library and hence allows one to load data into R from
files in the HDF5 format. The bug appeared during a period in which R changed
but the package did not.
I include below both the R and C code, stripped of everything except what is
needed to show the bug. What is supposed to