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<div>There is a function 'repool' to do what you need (see ?repool). If A and B are two geninds with different alleles, then it merges the datasets together to have matching alleles and dimensions.<br>
<br>
Dropping the locus is possible here indeed, but that's a potentially big loss of information if it is informative in the training set - this locus alone could define the most likely group assignment.<br>
<br>
Cheers<br>
Thibaut<br>
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<div style="direction: ltr;" id="divRpF342204"><font face="Tahoma" color="#000000" size="2"><b>From:</b> Mark Coulson [Mark.Coulson.ic@uhi.ac.uk]<br>
<b>Sent:</b> 19 June 2015 11:43<br>
<b>To:</b> Jombart, Thibaut<br>
<b>Subject:</b> RE: supplementary individuals<br>
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<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D">Thanks Thibault!
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<p class="MsoNormal"><span style="color:#1F497D">Not sure what you mean about the repool. All individuals in the supplementary are fixed ‘0202’. My initial reaction was to simply drop this locus from both datasets and re-run the DAPC – what’s the easiest way
to tell adegenet to omit a locus?</span></p>
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<p class="MsoNormal"><span style="color:#1F497D">Best,</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Mark</span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"" lang="EN-US">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"" lang="EN-US"> Jombart, Thibaut [mailto:t.jombart@imperial.ac.uk]
<br>
<b>Sent:</b> 19 June 2015 11:41<br>
<b>To:</b> Mark Coulson; adegenet-forum@lists.r-forge.r-project.org<br>
<b>Subject:</b> RE: supplementary individuals</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"; color:black">Hi Mark<br>
<br>
I think you identified the problem. genind object keep only polymorphic sites. <br>
<br>
You would need to 'repool' your supplementary individuals to make sure loci/alleles match, and then just extract the relevant individuals for the prediction.<br>
<br>
Makes sense?<br>
<br>
Best<br>
Thibaut</span></p>
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==============================<br>
Dr Thibaut Jombart<br>
MRC Centre for Outbreak Analysis and Modelling<br>
Department of Infectious Disease Epidemiology<br>
Imperial College - School of Public Health<br>
Norfolk Place, London W2 1PG, UK<br>
Tel. : 0044 (0)20 7594 3658<br>
<a href="http://sites.google.com/site/thibautjombart/" target="_blank">http://sites.google.com/site/thibautjombart/</a><br>
<a href="http://sites.google.com/site/therepiproject/" target="_blank">http://sites.google.com/site/therepiproject/</a><br>
<a href="http://adegenet.r-forge.r-project.org/" target="_blank">http://adegenet.r-forge.r-project.org/</a><br>
Twitter: @thibautjombart<br>
<br>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"; color:black">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"; color:black">
<a href="mailto:adegenet-forum-bounces@lists.r-forge.r-project.org" target="_blank">
adegenet-forum-bounces@lists.r-forge.r-project.org</a> [adegenet-forum-bounces@lists.r-forge.r-project.org] on behalf of Mark Coulson [Mark.Coulson.ic@uhi.ac.uk]<br>
<b>Sent:</b> 19 June 2015 11:23<br>
<b>To:</b> <a href="mailto:adegenet-forum@lists.r-forge.r-project.org" target="_blank">
adegenet-forum@lists.r-forge.r-project.org</a><br>
<b>Subject:</b> [adegenet-forum] supplementary individuals</span><span style="font-size:12.0pt; font-family:"Times New Roman","serif"; color:black"></span></p>
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<p class="MsoNormal"><span style="color:black">Hi Thibault,</span></p>
<p class="MsoNormal"><span style="color:black"> </span></p>
<p class="MsoNormal"><span style="color:black">I am trying to use the pred.sup function to assign ‘test’ individuals against my baseline data. Both baseline and supplementary individuals files load fine in adegenet but when I run the pred.sup function I get
the following:</span></p>
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<p class="MsoNormal"><span style="color:red">Error in predict.dapc(dapc1, newdata=sup):</span><span style="color:black"></span></p>
<p class="MsoNormal"><span style="color:red"> Number of variables in newdata does not match original data.</span><span style="color:black"></span></p>
<p class="MsoNormal"><span style="color:black"> </span></p>
<p class="MsoNormal"><span style="color:black"> </span></p>
<p class="MsoNormal"><span style="color:black">Looking at the dataframes, the baseline says it’s a matrix of 1800 x 70 (which I expect), however the supplementary says 69 for the latter(?). I have found that when interrogating @loc.fac for the supplementary
file, locus27 is only listed once, while all others are listed 2x. Perhaps a coincidence but this locus is the only one that is monomorphic in the supplementary individuals but it is polymorphic in the baseline – would this have any effect?</span></p>
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<p class="MsoNormal"><span style="color:black">Suggestions?</span></p>
<p class="MsoNormal"><span style="color:black"> </span></p>
<p class="MsoNormal"><span style="color:black">Thanks,</span></p>
<p class="MsoNormal"><span style="color:black">Mark</span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt; font-family:"Times New Roman","serif"; color:black">Inverness College UHI, a partner in the University of the Highlands and Islands
<a href="http://www.inverness.uhi.ac.uk" target="_blank">www.inverness.uhi.ac.uk</a> Board of Management of Inverness College (known as Inverness College UHI), Scottish Charity No SC021197.
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Inverness College UHI, a partner in the University of the Highlands and Islands www.inverness.uhi.ac.uk Board of Management of Inverness College (known as Inverness College UHI), Scottish Charity No SC021197.
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