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Hi, <br>
<br>
install.packages("pls") should do the trick. <br>
<br>
cheers, <br>
Benjamin<br>
<br>
<div class="moz-cite-prefix">On 23.07.2018 23:47, Rop Willy wrote:<br>
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cite="mid:CAHwAZ_QOXM-Gmby2mAu2G1Y+i_z1tiq5JKY650tXEo1YYtVytA@mail.gmail.com">
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<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>
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<br>
<pre class="moz-signature" cols="72">--
Benjamin Leutner
Department of Remote Sensing
University of Wuerzburg
Campus Hubland Nord 86
97074 Wuerzburg, Germany
Tel: +49-(0)931-31 89594
Email: <a class="moz-txt-link-abbreviated" href="mailto:benjamin.leutner@uni-wuerzburg.de">benjamin.leutner@uni-wuerzburg.de</a>
Web: <a class="moz-txt-link-freetext" href="http://www.fernerkundung.uni-wuerzburg.de">http://www.fernerkundung.uni-wuerzburg.de</a>
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