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Hi, <br>
<br>
there's a bug in the NA handling in unsuperClass. It is already
fixed (current version on GitHub), but not yet released on CRAN
(soon...).<br>
<br>
In the meantime, you can either install the GitHub version of
RStoolbox or simply fix the NA value yourself:<br>
<br>
<pre>NAvalue(p224r63_2011_uc$map) <- -99</pre>
<br>
For the model: The loadings() is somewhat out of place here, it
belongs to PCA.<br>
To get the k-means model, this is enough:<br>
<br>
<pre>p224r63_2011_uc$model </pre>
<br>
Cheers,<br>
Benjamin<br>
<br>
<br>
<div class="moz-cite-prefix">On 07.09.2016 23:01, Natalia Quinteros
wrote:<br>
</div>
<blockquote
cite="mid:CAOZBhq3EjDko91hyfSXoyGrZZsHdZAWRBpnUCYQXcboFEndGpg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Hi all, </div>
<div><br>
</div>
<div>I'm going through the book and I'm at Chapter 8 doing the
Unsupervised Classification example and I am obtaining a
monochromatic image and a Null model. I wonder if anybody have
had the same problem and could fix it. </div>
<div><br>
</div>
<div>This is my code: </div>
<div><br>
</div>
<div>set.seed(6)<br>
p224r63_2011 <- brick("p224r63_2011.grd", package="raster")<br>
p224r63_2011_uc <- unsuperClass(p224r63_2011, nSamples =
10000, nClasses = 4, nStarts = 50, norm = TRUE)<br>
loadings(p224r63_2011_uc$model)<br>
colors <- rainbow(5)<br>
plot(p224r63_2011_uc$map)</div>
<div><br>
</div>
<div>Thank you</div>
<div><br>
</div>
<div>Natalia</div>
<div><br>
</div>
<div>p.s. this is the image after plotting </div>
<div><br>
</div>
<div><img alt="Inline image 1"
src="cid:part1.926357EC.8360A012@uni-wuerzburg.de"
height="395" width="416"></div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Benjamin Leutner M.Sc.
PhD candidate
Department of Remote Sensing
University of Wuerzburg
Campus Hubland Nord 86
97074 Wuerzburg, Germany
Tel: +49-(0)931-31 89594
Fax: +49-(0)931-31 89594-0
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>
</pre>
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