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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">Dear Dirk and Doug,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">Thanks for your help. As I understand it, Dougs solution is to first wrap the result and then deal with attributes afterwards. An example in the gallery
would perhaps be welcome?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">Thanks again<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">Søren<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> dmbates@gmail.com [mailto:dmbates@gmail.com]
<b>On Behalf Of </b>Douglas Bates<br>
<b>Sent:</b> 19. januar 2013 16:58<br>
<b>To:</b> Dirk Eddelbuettel<br>
<b>Cc:</b> Søren Højsgaard; rcpp-devel@lists.r-forge.r-project.org<br>
<b>Subject:</b> Re: [Rcpp-devel] RcppEigen: Getting and setting dimnames of sparse matrix<o:p></o:p></span></p>
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<p class="MsoNormal">On Sat, Jan 19, 2013 at 10:38 AM, Douglas Bates <<a href="mailto:bates@stat.wisc.edu" target="_blank">bates@stat.wisc.edu</a>> wrote:<o:p></o:p></p>
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On thinking about this a bit more, the dimnames should be cloned before being assigned, otherwise you end up with two references to the same storage. And once you try to clone you get into the SlotProxy area where you need to know what you are cloning. One
way of doing this is shown in the enclosed. An alternative is<o:p></o:p></p>
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<p class="MsoNormal">Xout.slot("Dimnames") = clone(as<SEXP>((Xin.slot("Dimnames"))));<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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