<div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr">On Sat, 17 Dec 2016 at 14:00 Michael Sumner <<a href="mailto:mdsumner@gmail.com">mdsumner@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg"><div dir="ltr" class="gmail_msg">On Sat, 17 Dec 2016 at 13:34 Sean Davis <<a href="mailto:seandavi@gmail.com" class="gmail_msg" target="_blank">seandavi@gmail.com</a>> wrote:<br class="gmail_msg"></div><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="gmail_msg">Does it need to be NetCDF, or can you settle for HDF5?  There are a couple of HDF5 packages available.<div class="gmail_msg"><br class="gmail_msg"></div></div></blockquote><div class="gmail_msg"><br class="gmail_msg"></div></div></div><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg">I find HDF5 is way too raw, so you're always writing abstractions from scratch  - but that might be the best way. I haven't seen an HDF5 R package that was suitable for the range of inputs yet.   </div><div class="gmail_quote gmail_msg"><br class="gmail_msg"></div></div></blockquote><div><br></div><div>I see rhdf5 2.18.0 has been on Bioconductor since October 2016: <a href="http://bioconductor.org/packages/release/bioc/html/rhdf5.html">http://bioconductor.org/packages/release/bioc/html/rhdf5.html</a></div><div><br></div><div>This seems to fit the bill for the limitations I had from NetCDF and the other HDF5 packages. </div><div><br></div><div>Thanks, Mike. </div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg"></div><div class="gmail_quote gmail_msg">Still, if it were a better target I'd like to level-up and make this a wishlist for HDF5 that was generally applicable, to the NetCDF4 model and others (libkea comes to mind). <br class="m_4240170645966985222inbox-inbox-Apple-interchange-newline gmail_msg"><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Either way experiences with Rcpp and HDF5 or NetCDF are welcome. </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Thanks, Mike.  </div></div></div><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg"><blockquote class="gmail_quote gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="gmail_msg"><div class="gmail_msg"></div><div class="gmail_msg"><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"></blockquote></div></div></div><div style="word-wrap:break-word" class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"><div class="gmail_msg">On Dec 16, 2016, at 8:55 PM, Michael Sumner <<a href="mailto:mdsumner@gmail.com" class="gmail_msg" target="_blank">mdsumner@gmail.com</a>> wrote:</div><br class="m_4240170645966985222m_-6403180664424344551Apple-interchange-newline gmail_msg"></blockquote></div></div></div><div style="word-wrap:break-word" class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"><div class="gmail_msg"><div dir="ltr" class="gmail_msg">I've outlined a wishlist item for a modern Rcpp wrapper for the NetCDF library: <div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg"><a href="https://github.com/RConsortium/wishlist/issues/3" class="gmail_msg" target="_blank">https://github.com/RConsortium/wishlist/issues/3</a><br class="gmail_msg"></div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">I'd appreciate any advice from those with Rcpp expertise and knowledge of wrapping external libraries.  </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Does NetCDF look particularly difficult to work with? Or, would it be reasonably straigtforward, but quite a lot of work? </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">It's perhaps a bit wishful to expect anyone with those skills to offer to be involved, but it would be really helpful to at least have some thoughts - even just "that's crazy hard" or "way too easy", or anything in between. </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">NetCDF is a general multi-dimensional array format, with metadata and slice-based index read - in modern forms (v4.0) it's based on HDF5. It's used for many kinds of data, but sees majority use (probably) in remote sensing and climate modelling. </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Thank you. </div><div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Cheers, Mike. </div></div><div dir="ltr" class="gmail_msg">-- <br class="gmail_msg"></div><div data-smartmail="gmail_signature" class="gmail_msg"><div dir="ltr" class="gmail_msg"><span class="gmail_msg">Dr. Michael Sumner</span><br class="gmail_msg"><span class="gmail_msg">Software and Database Engineer</span><br class="gmail_msg"><span class="gmail_msg">Australian Antarctic Division</span><br class="gmail_msg"><span class="gmail_msg">203 Channel Highway</span><br class="gmail_msg"><span class="gmail_msg">Kingston Tasmania 7050 Australia</span><br class="gmail_msg"><br class="gmail_msg"></div></div></div></blockquote></div></div></div><div style="word-wrap:break-word" class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"><div class="gmail_msg">
_______________________________________________<br class="gmail_msg">Rcpp-devel mailing list<br class="gmail_msg"><a href="mailto:Rcpp-devel@lists.r-forge.r-project.org" class="gmail_msg" target="_blank">Rcpp-devel@lists.r-forge.r-project.org</a><br class="gmail_msg"><a href="https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel" class="gmail_msg" target="_blank">https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel</a></div></blockquote></div><br class="gmail_msg"></div></div></blockquote></div></div><div dir="ltr" class="gmail_msg">-- <br class="gmail_msg"></div><div data-smartmail="gmail_signature" class="gmail_msg"><div dir="ltr" class="gmail_msg"><span class="gmail_msg">Dr. Michael Sumner</span><br class="gmail_msg"><span class="gmail_msg">Software and Database Engineer</span><br class="gmail_msg"><span class="gmail_msg">Australian Antarctic Division</span><br class="gmail_msg"><span class="gmail_msg">203 Channel Highway</span><br class="gmail_msg"><span class="gmail_msg">Kingston Tasmania 7050 Australia</span><br class="gmail_msg"><br class="gmail_msg"></div></div></blockquote></div></div><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature"><div dir="ltr"><span>Dr. Michael Sumner</span><br><span>Software and Database Engineer</span><br><span>Australian Antarctic Division</span><br><span>203 Channel Highway</span><br><span>Kingston Tasmania 7050 Australia</span><br><br></div></div>