<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><div><blockquote type="cite" class="clean_bq" style="color: rgb(0, 0, 0); font-family: Helvetica, Arial; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); ">The change of the defaults in 1.9.3 breaks existing code, which shoud not be <br>(see. DT FAQ 1.8).</blockquote></div><p>Thanks. Yes, that's what will be the case when it hits CRAN. There will be an option to use the older feature, IIUC. Matt can clarify this point further.</p></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><div><blockquote type="cite" class="clean_bq" style="color: rgb(0, 0, 0); font-family: Helvetica, Arial; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); ">I know that 1.9.3 is a development version, but I can't use 1.9.2 due to <br>http://r.789695.n4.nabble.com/Change-in-list-behavior-inside-join-td4687469.html </blockquote></div><p>Can you show us an example that 1.9.2 doesn't but 1.9.3 does? </p><p>In your case, you should be using stable 1.9.2 version (at least until counter measures are in place for by=.EACHI). And you should ask your administrators to downgrade R, if you don't want that bug to bite you, until this is fixed. But I'm repeating myself.</p></div> <div id="bloop_sign_1399457180205428224" class="bloop_sign"><div style="font-family:helvetica,arial;font-size:13px">Arun</div></div> <div style="color:black"><br>From: <span style="color:black">nachti</span> <a href="mailto:kpm.nachtmann@gmail.com">kpm.nachtmann@gmail.com</a><br>Reply: <span style="color:black">nachti</span> <a href="mailto:kpm.nachtmann@gmail.com">kpm.nachtmann@gmail.com</a><br>Date: <span style="color:black">May 7, 2014 at 11:02:30 AM</span><br>To: <span style="color:black">datatable-help@lists.r-forge.r-project.org</span> <a href="mailto:datatable-help@lists.r-forge.r-project.org">datatable-help@lists.r-forge.r-project.org</a><br>Subject: <span style="color:black"> Re: [datatable-help] changing data.table by-without-by syntax to require a "by" <br></span></div><br> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>The change of the defaults in 1.9.3 breaks existing code, which shoud not be
<br>(see. DT FAQ 1.8). Would be fine if there is a possibility that code works
<br>with different versions of DT and R (e.g. for usage in packages).
<br>See the example here: https://gist.github.com/nachti/34b2dc46868b9268c5af
<br><https://gist.github.com/nachti/34b2dc46868b9268c5af>
<br>I know that 1.9.3 is a development version, but I can't use 1.9.2 due to
<br>http://r.789695.n4.nabble.com/Change-in-list-behavior-inside-join-td4687469.html
<br><http://r.789695.n4.nabble.com/Change-in-list-behavior-inside-join-td4687469.html>
<br>and I can't switch back to an older R-Version because of missing permissions
<br>on the server. I have to use a different versions of R and DT parallel.
<br>If I rewrite my code that it works for 1.9.3, it doesn't work with 1.8.10
<br>any more. (see also
<br>http://stackoverflow.com/questions/23289646/update-subset-of-data-table-based-on-join-using-data-table-1-9-3-does-not-work-a
<br><http://stackoverflow.com/questions/23289646/update-subset-of-data-table-based-on-join-using-data-table-1-9-3-does-not-work-a>
<br>by = key(something) is not the same as by = .EACHI, but even if I can get a
<br>solution using the first, 1.8.10 gives a warning, that I shouldn't do that:
<br>
<br>In addition: Warning message:
<br>In `[.data.table` ...:
<br> by is not necessary in this query; it equals all the join columns in the
<br>same order. j is already evaluated by group of x that each row of i matches
<br>to (by-without-by, see ?data.table). Setting by will be slower because a
<br>subset of x is taken and then grouped again. Consider removing by, or
<br>changing it.
<br>
<br>nachti
<br>
<br>
<br>
<br>--
<br>View this message in context: http://r.789695.n4.nabble.com/changing-data-table-by-without-by-syntax-to-require-a-by-tp4664770p4690100.html
<br>Sent from the datatable-help mailing list archive at Nabble.com.
<br>_______________________________________________
<br>datatable-help mailing list
<br>datatable-help@lists.r-forge.r-project.org
<br>https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
<br></div></div></span></blockquote></body></html>