Hi,

You can also read the hdf5 files with the rgdal package. This loads them into sp-objects, see the sp-package for more info. In the archives of the r-sig-geo mailing list there have been some other people (including myself :)) that have asked this question:

https://stat.ethz.ch/pipermail/r-sig-geo/2009-January/004828.html
http://markmail.org/message/ypsr77vl3qscq72f#query:r-sig-geo%20read%20hdf5+page:1+mid:ivkt5qxroeh3z646+state:results
http://www.mail-archive.com/r-sig-...@stat.math.ethz.ch/msg01871.html

cheers,
Paul

Scott MacDonald wrote:
That did it, boy do I feel silly.

Thanks!

On Fri, Nov 13, 2009 at 10:16 PM, Berwin A Turlach
<ber...@maths.uwa.edu.au>wrote:

G'day Scott,

On Fri, 13 Nov 2009 09:52:43 -0700
Scott MacDonald <scott.p.macdon...@gmail.com> wrote:

I am trying to load an hdf5 file into R and running into some
problems.
It's a while that I used hdf5 files and that package in R, but:

This builds fine. The library seems to load without issue, but no
data is returned when I try to load a file:

    > library(hdf5)
    > hdf5load("test.h5")
    > NULL
Is NULL the return of the hdf5load command or are you typing it on the
command line?

Anyway, .hdf5 files can contain several objects, just as R's .rda
file.  load() will load an .rda file and put all objects in that file
into the workspace.  Likewise, hdf5load() loads an hdf5 file and puts
all objects in that file into the workspace.

Yet,

    osx:data scott$ h5dump test.h5 HDF5 "test.h5" { GROUP
"/" { DATASET "dset" { DATATYPE H5T_STD_I32LE DATASPACE SIMPLE
{ ( 31 ) / ( 31 ) } DATA { (0): 1, 2, 4, 8, 16, 32, 64, 128, 256,
512, 1024, 2048, 4096, 8192, (14): 16384, 32768, 65536, 131072,
262144, 524288, 1048576, 2097152, (22): 4194304, 8388608, 16777216,
33554432, 67108864, 134217728, (28): 268435456, 536870912,
1073741824 } } } }

Any thoughts?
Did you try an ls() after the hdf5load() command?  If the hdf5load()
command was successfull, an ls() should show you that an object with
name "dset" is now in your workspace; if I read the output above
correctly.

HTH.

Cheers,

       Berwin




        [[alternative HTML version deleted]]

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


--
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +3130 274 3113 Mon-Tue
Phone:  +3130 253 5773 Wed-Fri
http://intamap.geo.uu.nl/~paul

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to