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+ <h1>Likelihood ratio test for mkinfit models</h1>
+
+ <div class="hidden name"><code>lrtest.mkinfit.Rd</code></div>
+ </div>
+
+ <div class="ref-description">
+ <p>Compare two mkinfit models based on their likelihood. If two fitted
+mkinfit objects are given as arguments, it is checked if they have been
+fitted to the same data. It is the responsibility of the user to make sure
+that the models are nested, i.e. one of them has less degrees of freedom
+and can be expressed by fixing the parameters of the other.</p>
+ </div>
+
+ <pre class="usage"><span class='co'># S3 method for mkinfit</span>
+<span class='fu'><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest</a></span>(<span class='no'>object</span>, <span class='kw'>object_2</span> <span class='kw'>=</span> <span class='kw'>NULL</span>, <span class='no'>...</span>)</pre>
+
+ <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
+ <table class="ref-arguments">
+ <colgroup><col class="name" /><col class="desc" /></colgroup>
+ <tr>
+ <th>object</th>
+ <td><p>An <code><a href='mkinfit.html'>mkinfit</a></code> object</p></td>
+ </tr>
+ <tr>
+ <th>object_2</th>
+ <td><p>Optionally, another mkinfit object fitted to the same data.</p></td>
+ </tr>
+ <tr>
+ <th>...</th>
+ <td><p>Argument to <code><a href='mkinfit.html'>mkinfit</a></code>, passed to
+<code><a href='update.mkinfit.html'>update.mkinfit</a></code> for creating the alternative fitted object.</p></td>
+ </tr>
+ </table>
+
+ <h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>
+
+ <p>Alternatively, an argument to mkinfit can be given which is then passed
+to <code><a href='update.mkinfit.html'>update.mkinfit</a></code> to obtain the alternative model.</p>
+<p>The comparison is then made by the <code><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest.default</a></code>
+method from the lmtest package. The model with the higher number of fitted
+parameters (alternative hypothesis) is listed first, then the model with the
+lower number of fitted parameters (null hypothesis).</p>
+
+ <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
+ <pre class="examples"><div class='input'><span class='co'># \dontrun{</span>
+<span class='no'>test_data</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/subset.html'>subset</a></span>(<span class='no'>synthetic_data_for_UBA_2014</span><span class='kw'>[[</span><span class='fl'>12</span>]]$<span class='no'>data</span>, <span class='no'>name</span> <span class='kw'>==</span> <span class='st'>"parent"</span>)
+<span class='no'>sfo_fit</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='mkinfit.html'>mkinfit</a></span>(<span class='st'>"SFO"</span>, <span class='no'>test_data</span>, <span class='kw'>quiet</span> <span class='kw'>=</span> <span class='fl'>TRUE</span>)
+<span class='no'>dfop_fit</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='mkinfit.html'>mkinfit</a></span>(<span class='st'>"DFOP"</span>, <span class='no'>test_data</span>, <span class='kw'>quiet</span> <span class='kw'>=</span> <span class='fl'>TRUE</span>)
+<span class='fu'><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest</a></span>(<span class='no'>dfop_fit</span>, <span class='no'>sfo_fit</span>)</div><div class='output co'>#&gt; Likelihood ratio test
+#&gt;
+#&gt; Model 1: DFOP with error model const
+#&gt; Model 2: SFO with error model const
+#&gt; #Df LogLik Df Chisq Pr(&gt;Chisq)
+#&gt; 1 5 -42.453
+#&gt; 2 3 -63.954 -2 43.002 4.594e-10 ***
+#&gt; ---
+#&gt; Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1</div><div class='input'><span class='fu'><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest</a></span>(<span class='no'>sfo_fit</span>, <span class='no'>dfop_fit</span>)</div><div class='output co'>#&gt; Likelihood ratio test
+#&gt;
+#&gt; Model 1: DFOP with error model const
+#&gt; Model 2: SFO with error model const
+#&gt; #Df LogLik Df Chisq Pr(&gt;Chisq)
+#&gt; 1 5 -42.453
+#&gt; 2 3 -63.954 -2 43.002 4.594e-10 ***
+#&gt; ---
+#&gt; Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1</div><div class='input'><span class='fu'><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest</a></span>(<span class='no'>dfop_fit</span>, <span class='kw'>error_model</span> <span class='kw'>=</span> <span class='st'>"tc"</span>)</div><div class='output co'>#&gt; <span class='error'>Error in mkinfit(mkinmod = "DFOP", observed = test_data, quiet = TRUE, error_model = "tc", parms.ini = c(k1 = 0.359673923258109, k2 = 0.0219997339436148, g = 0.692423284341522), state.ini = c(parent = 103.83323992643)): Objekt 'test_data' nicht gefunden</span></div><div class='input'><span class='fu'><a href='https://rdrr.io/pkg/lmtest/man/lrtest.html'>lrtest</a></span>(<span class='no'>dfop_fit</span>, <span class='kw'>fixed_parms</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='kw'>k2</span> <span class='kw'>=</span> <span class='fl'>0</span>))</div><div class='output co'>#&gt; <span class='error'>Error in mkinfit(mkinmod = "DFOP", observed = test_data, quiet = TRUE, fixed_parms = ..1, parms.ini = c(k1 = 0.359673923258109, k2 = 0.0219997339436148, g = 0.692423284341522), state.ini = c(parent = 103.83323992643)): Objekt 'test_data' nicht gefunden</span></div><div class='input'># }
+</div></pre>
+ </div>
+ <div class="col-md-3 hidden-xs hidden-sm" id="sidebar">
+ <h2>Contents</h2>
+ <ul class="nav nav-pills nav-stacked">
+ <li><a href="#arguments">Arguments</a></li>
+ <li><a href="#details">Details</a></li>
+ <li><a href="#examples">Examples</a></li>
+ </ul>
+
+ </div>
+</div>
+
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