<div dir="ltr"><div class="markdown-here-wrapper" style=""><p style="margin:0px 0px 1.2em!important">Hello,</p>
<hr>
<p style="margin:0px 0px 1.2em!important">I have been practicing with the book and it’s been great so far. However, there seems to be a problem with <strong>Partial Least Squares Regression</strong> in superClass() function. When I run the following code:</p>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code class="hljs language-r" style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline;white-space:pre;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;overflow-x:auto;padding:0.5em;color:rgb(0,0,0);background:rgb(248,248,255)">sc <- superClass(p224r63_2011, trainData = training_2011, responseCol = <span class="hljs-string" style="color:rgb(33,145,97)">"class_name"</span>, model = <span class="hljs-string" style="color:rgb(33,145,97)">"pls*</span>
</code></pre>
<p style="margin:0px 0px 1.2em!important">I get the following error:</p>
<p style="margin:0px 0px 1.2em!important"><strong>Error: Required package is missing in addition: Warning message: package ‘caret’ was built under R version 3.4.4.</strong></p>
<p style="margin:0px 0px 1.2em!important">When I first encountered this problem, I run <strong>superClass()</strong> using different models without <strong>lapply ()</strong> in order to identify where the problem was. It occurred to me that Random Forest and Support Vector Machines with radial basis kernel work as required while when I include “model = ‘pls’” it produces that error.</p>
<p style="margin:0px 0px 1.2em!important">NB: I thought maybe it was because of caret package, so I installed it but it seems it was not.</p>
<p style="margin:0px 0px 1.2em!important">Which package is missing?</p>
<p style="margin:0px 0px 1.2em!important">Thank you,</p>
<p style="margin:0px 0px 1.2em!important">Rop</p>
<div title="MDH:SGVsbG8sPGRpdj48YnI+PC9kaXY+PGRpdj4tLS08YnI+PGRpdj48YnI+PC9kaXY+PGRpdj5JIGhh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==" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div>