<div class="markdown_content"><p>Hi!</p>
<p>The functionality covered by graphical dialogs in RKWard is still somewhat limited, and does not include non-linear regression - in the official distribution.</p>
<p>The separately available package rk.Teaching provides some support for non-linear regression. As far as I am aware, it is only available in Spanish, ATM, and you'll have to check for yourself, whether it covers the functionality you need. You can install this using "Settings->Manage R packages and plugins..."</p>
<p>Apart from this, RKWard provides full access to R, and thus you can do simply use R inside RKWard, interactively (using the "R Console"-window), or by writing a script. You will still be able to profit from graphical functionality e.g. for importing/editing data, etc.</p>
<p>If your question is about installing R packages, specifically, the answer is simple: Either use</p>
<div class="codehilite"><pre> <span class="n">install</span><span class="p">.</span><span class="n">packages</span><span class="p">()</span>
</pre></div>
<p>as in regular R, or the RKWards graphical package management dialog ("Settings->Manage R packages and plugins...").</p>
<p>Regards<br />
Thomas</p>
<hr />
<p><a class="" href="https://sourceforge.net/p/rkward/discussion/165574/thread/e7910cd9/?limit=25#219b">Non Linear Tools in Rkward</a></p>
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