[R-sig-Geo] What is the latest re: reading HDF files with R?

[Scott W Mitchell]

I have never done this, so may be missing something obvious, but can  
you not use rgdal ?  GDAL lists HDF4 as a supported format.

Cheers,
Scott

On 10-Jan-07, at 14:49, Rick Reeves wrote:

>
> Greetings:
>
> This week I am working with HDF format files containing ocean color  
> imagery (CZCS, SeaWIFS) secured from NASA GSFC,
> and would like to bring the image maps into the R environment.
>
> One way I have done this is to use the SeaDAS software to extract a  
> 2-dim binary floating point matrix (from the HDF file)
> and write it to disk, then use R pixmap() to read it in to a  
> vector. This works, but one loses all of the image attributes
> contained in the HDF header. Now, it would be good to read the HDF  
> file directly into R, capturing the header attributes.
>
> I have tried the R HDF5 library routine hdf5load(), which seems to  
> read the new .hdf5 format
> but NOT the older .hdf format (I tried, unsuccessfully)
>
> Question is: Has anyone developed a technique to read HDF files  
> with R?
>
> Thanks in advance, Rick R
>
> -- 
> Rick Reeves	
> Scientific Programmer / Analyst	
> National Center for Ecological Analysis and Synthesis
> UC Santa Barbara
> reeves at nceas.ucsb.edu
> www.nceas.ucsb.edu
> 805 892 2533
>
> <reeves.vcf>
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