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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dear George,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I see that it is OK now. Thank you! I have no time for further reactions now, am packing for a no-internet holiday of a week. I’ll return to you after I’m
back.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best wishes, thanks a lot,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">================================================================<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tom A.B. Snijders<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Professor of Statistics and Methodology<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Dept. of Sociology, University of Groningen<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Emeritus Fellow, Nuffield College, University of Oxford<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Associate Member, Dept. of Statistics, University of Oxford<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">http://www.stats.ox.ac.uk/~snijders/<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<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""> George Vega Yon [mailto:g.vegayon@gmail.com]
<br>
<b>Sent:</b> 14 October 2016 20:38<br>
<b>To:</b> Tom Snijders<br>
<b>Cc:</b> rsiena-help@lists.r-forge.r-project.org; Christian Steglich (c.e.g.steglich@rug.nl) (c.e.g.steglich@rug.nl)<br>
<b>Subject:</b> Re: Update failed<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dear Prof. Snijders,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I see the error, -markeForkCluster- is meaningless in windows, that's why the error. I've change it to -makeCluster- which "is cross platform" so the error shouldn't show up again. Plus, I've included details in siena07.Rd (the function
manual) about it:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">> <span style="font-family:"Arial","sans-serif";color:black">
In the case of using multiple processors, there are two options for telling siena07 to use them. By specifying the options useCluster, nbrNodes, clusterString and initC, siena07 will create a cluster object that will be used by the parallel package. After finishing
the estimation procedure, siena07 will automatically stop the cluster. Alternatively, instead of having the function to create a cluster, the user may provide its own by specifying the option cl, similar to what the boot function does in the boot package.
By using the option cl the user may be able to create more complex clusters (see examples below).</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Furthermore, I've included a couple of examples in the manual siena07.Rd:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># Running in multiple processors -----------------------------------------------<o:p></o:p></p>
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<p class="MsoNormal">## Not run: <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># Using 8 processors<o:p></o:p></p>
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<p class="MsoNormal">ans2 <- siena07(myalgorithm, data=mydata, effects=myeff, batch=TRUE,<o:p></o:p></p>
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<p class="MsoNormal"> useCluster=TRUE, nbrNodes=8, initC=TRUE)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># Loading the parallel package and creating a cluster<o:p></o:p></p>
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<p class="MsoNormal"># with 8 processors (this should be equivalent)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">library(parallel)<o:p></o:p></p>
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<p class="MsoNormal">cl <- makeCluster(8)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">ans3 <- siena07(myalgorithm, data=mydata, effects=myeff, batch=TRUE,<o:p></o:p></p>
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<p class="MsoNormal"> cl = cl)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># Notice that now -siena07- won't stop the cluster for you.<o:p></o:p></p>
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<p class="MsoNormal">stopCluster(cl)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># You can create even more complex clusters using several computers. In this<o:p></o:p></p>
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<p class="MsoNormal"># example we are creating a cluster with 3*8 = 24 processors on three<o:p></o:p></p>
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<p class="MsoNormal"># different machines.<o:p></o:p></p>
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<p class="MsoNormal">cl <- makePSOCKcluster(<o:p></o:p></p>
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<p class="MsoNormal"> rep(c('localhost', '<a href="http://machine2.website.com">machine2.website.com</a>' , '<a href="http://machine3.website.com">machine3.website.com</a>'), 8),<o:p></o:p></p>
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<p class="MsoNormal"> user='myusername', rshcmd='ssh -p PORTNUMBER')<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">ans4 <- siena07(myalgorithm, data=mydata, effects=myeff, batch=TRUE,<o:p></o:p></p>
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<p class="MsoNormal"> cl = cl)<o:p></o:p></p>
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<p class="MsoNormal">stopCluster(cl)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I've already pushed the new changes and the R CMD check is OK now.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal">George G. Vega Yon<br>
+1 (626) 381 8171<br>
<a href="http://cana.usc.edu/vegayon" target="_blank">http://cana.usc.edu/vegayon</a><o:p></o:p></p>
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