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<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010>For feature requests, there's a "Feature Request"
section on R-forge. You might even find yours listed.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010><A
href="https://r-forge.r-project.org/tracker/?atid=978&group_id=240&func=browse">https://r-forge.r-project.org/tracker/?atid=978&group_id=240&func=browse</A></SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010>With open-source projects, the best way to get a
requested feature is to become involved. Asking how soon something will be
implemented is one of the worst ways.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010>The easiest way to handle your issue is by converting
to factors. It's not that messy. Even your method shouldn't be that messy with a
couple of conversion functions.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010>In Matthew's recent upgrades, he set up the data.table
infrastructure to better support decimal keys (possibly in the future). The
biggest drawback is probably that grouping would be much slower because the fast
grouping relies on integers with a range less than 100000.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN
class=557375816-30062010></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial size=2><SPAN class=557375816-30062010>-
Tom</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
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<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B>
datatable-help-bounces@lists.r-forge.r-project.org
[mailto:datatable-help-bounces@lists.r-forge.r-project.org] <B>On Behalf Of
</B>Desmond Wee<BR><B>Sent:</B> Wednesday, June 30, 2010 11:33<BR><B>To:</B>
datatable-help@r-forge.wu-wien.ac.at<BR><B>Subject:</B> [datatable-help]
data.table - sort key - columns with real numbers<BR><B>Importance:</B>
High<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dear Mathew &
Tom,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I would like to thank you very
much for contributing such an excellent and useful package. I have been trying
to write some form of R codes to overcome some of the limitations data.frame
and you have addressed the issues.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have a data table which has
columns containing decimal points. Your current setkey ( ) only allows integer
mode and do not allow decimals. I figured out that to overcome the problem I
need to multiple the column by 10^7 to convert to integer and then to divide
by 10^7 to obtain the actual value. It is a very messy and cumbersome process.
Could you please make changes to allow keys to have real numbers and maybe
other modes too? I would like to suggest that your codes do the conversions
and would make the package more elegant.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please inform me whether you will
be modifying your package and how soon will you be attempting to incorporate
the changes?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks
again.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoAutoSig><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; mso-no-proof: yes">Regards,<o:p></o:p></SPAN></FONT></P>
<P class=MsoAutoSig><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt; mso-no-proof: yes">Desmond
Wee<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>