<div dir="ltr">After seeing this post: <a href="http://stackoverflow.com/questions/22863414/using-roll-true-with-allow-cartesian-true#comment34980343_22866917">http://stackoverflow.com/questions/22863414/using-roll-true-with-allow-cartesian-true#comment34980343_22866917</a><div>
<br></div><div>I wrote to Matt about this as well. I've marked this issue to resolve it, as I've not heard back on this issue from Matt yet. Thanks for reporting.</div><div><br></div><div>Arun.</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Sat, May 10, 2014 at 8:45 AM, Michael Smith <span dir="ltr"><<a href="mailto:my.r.help@gmail.com" target="_blank">my.r.help@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
All,<br>
<br>
?data.table says that `.SD` is read-only. However, I could use `setkey`<br>
on it. Is this officially supported, or is it dangerous to use on `.SD`,<br>
e.g. since in some corner cases some unexpected behavior could occur.<br>
<br>
Thanks,<br>
<br>
M<br>
_______________________________________________<br>
datatable-help mailing list<br>
<a href="mailto:datatable-help@lists.r-forge.r-project.org">datatable-help@lists.r-forge.r-project.org</a><br>
<a href="https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help" target="_blank">https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help</a><br>
</blockquote></div><br></div>