<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Dear Said, </div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">both terminologies are correct: LDs are merely PCs of a discriminant analysis. But as DAPC has 2 sets of PCs, one of the initial PCA, then one for the follow-up discriminant analysis, LDs will be less ambiguous. </div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">As for the scale on scatterplots of DAPC: it is disabled by default as not usually used, but you can add a grid using grid = TRUE. See ?scatter.dapc for further options.</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif"><br></div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Best</div><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Thibaut</div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div><font face="arial, helvetica, sans-serif">--<br>Dr Thibaut Jombart<br>Associate Professor in Outbreak Analytics, London School of Hygiene and Tropical Medicine<br>Senior Lecturer in Genetic Analysis, Imperial College London</font></div><div><font face="arial, helvetica, sans-serif">UK Public Health Rapid Support Team</font></div><div><font face="arial, helvetica, sans-serif">President of RECON: <a href="http://repidemicsconsortium.org" target="_blank">repidemicsconsortium.org</a></font></div><div><font face="arial, helvetica, sans-serif"><a href="https://thibautjombart.netlify.com" style="letter-spacing:0.2px" target="_blank">https://thibautjombart.netlify.com</a><br></font></div><div><font face="arial, helvetica, sans-serif">Twitter: @TeebzR</font><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 30 Sep 2020 at 09:29, Said D. <<a href="mailto:said_wali@hotmail.com">said_wali@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
Hi everyone,</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
I googled a lot (Maybe I was not lucky enough) but I could not find a real explanation out the axes of the DAPC scatter plot.</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
Should I call them PC1 and PC2 or LD1 and LD2?</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
Here they call the axes LD1 and LD2</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
<a href="https://grunwaldlab.github.io/Population_Genetics_in_R/clustering_plot.html" id="gmail-m_-3703493816954147254LPlnk708253" target="_blank">https://grunwaldlab.github.io/Population_Genetics_in_R/clustering_plot.html</a><br>
</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
<br>
</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
It is also a pity that the original DAPC scatter plot is not showing the scale.</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
Thank you.<br>
Said</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
<br>
</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0);background-color:rgb(255,255,255)">
<br>
</div>
</div>
_______________________________________________<br>
adegenet-forum mailing list<br>
<a href="mailto:adegenet-forum@lists.r-forge.r-project.org" target="_blank">adegenet-forum@lists.r-forge.r-project.org</a><br>
<a href="https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/adegenet-forum" rel="noreferrer" target="_blank">https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/adegenet-forum</a></blockquote></div>