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authorJohannes Ranke <jranke@uni-bremen.de>2019-05-02 13:17:05 +0200
committerJohannes Ranke <jranke@uni-bremen.de>2019-05-02 13:17:05 +0200
commit70591022c07f0e8fb4dd67789b7c8d78af8ebc18 (patch)
treeacaecfce5ae304cfc48b111c6db24a3f2ed5c83d /docs/articles/web_only/FOCUS_Z.html
parent380a29e81f88cd80c9c6915200ddc7054c8a085a (diff)
Better initials for error model parameters
- Also make it possible to specify initial values for error model parameters. - Run tests - Rebuild docs
Diffstat (limited to 'docs/articles/web_only/FOCUS_Z.html')
-rw-r--r--docs/articles/web_only/FOCUS_Z.html18
1 files changed, 9 insertions, 9 deletions
diff --git a/docs/articles/web_only/FOCUS_Z.html b/docs/articles/web_only/FOCUS_Z.html
index 33d0c90f..950e8eab 100644
--- a/docs/articles/web_only/FOCUS_Z.html
+++ b/docs/articles/web_only/FOCUS_Z.html
@@ -88,7 +88,7 @@
<h1>Example evaluation of FOCUS dataset Z</h1>
<h4 class="author">Johannes Ranke</h4>
- <h4 class="date">2019-04-10</h4>
+ <h4 class="date">2019-05-02</h4>
<div class="hidden name"><code>FOCUS_Z.Rmd</code></div>
@@ -132,11 +132,11 @@
<p><img src="FOCUS_Z_files/figure-html/FOCUS_2006_Z_fits_1-1.png" width="700"></p>
<div class="sourceCode" id="cb7"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb7-1" title="1"><span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/summary">summary</a></span>(m.Z<span class="fl">.2</span>a, <span class="dt">data =</span> <span class="ot">FALSE</span>)<span class="op">$</span>bpar</a></code></pre></div>
<pre><code>## Estimate se_notrans t value Pr(&gt;t) Lower Upper
-## Z0_0 9.7015e+01 3.39373 2.8587e+01 6.4606e-21 91.66556 102.3642
-## k_Z0_sink 4.0181e-10 0.22534 1.7831e-09 5.0000e-01 0.00000 Inf
-## k_Z0_Z1 2.2360e+00 0.15915 1.4050e+01 1.1387e-13 1.95303 2.5600
-## k_Z1_sink 4.8212e-01 0.06547 7.3641e+00 5.1396e-08 0.40341 0.5762
-## sigma 4.8041e+00 0.63763 7.5343e+00 3.4444e-08 3.52677 6.0815</code></pre>
+## Z0_0 9.7015e+01 3.394776 2.8578e+01 6.5093e-21 91.66556 102.3642
+## k_Z0_sink 4.0301e-10 0.225510 1.7871e-09 5.0000e-01 0.00000 Inf
+## k_Z0_Z1 2.2360e+00 0.159161 1.4049e+01 1.1412e-13 1.95303 2.5600
+## k_Z1_sink 4.8212e-01 0.065499 7.3608e+00 5.1791e-08 0.40341 0.5762
+## sigma 4.8041e+00 0.637657 7.5340e+00 3.4468e-08 3.52677 6.0815</code></pre>
<p>As obvious from the parameter summary (the component of the summary), the kinetic rate constant from parent compound Z to sink is very small and the t-test for this parameter suggests that it is not significantly different from zero. This suggests, in agreement with the analysis in the FOCUS kinetics report, to simplify the model by removing the pathway to sink.</p>
<p>A similar result can be obtained when formation fractions are used in the model formulation:</p>
<div class="sourceCode" id="cb9"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb9-1" title="1">Z<span class="fl">.2</span>a.ff &lt;-<span class="st"> </span><span class="kw"><a href="../../reference/mkinmod.html">mkinmod</a></span>(<span class="dt">Z0 =</span> <span class="kw"><a href="../../reference/mkinsub.html">mkinsub</a></span>(<span class="st">"SFO"</span>, <span class="st">"Z1"</span>),</a>
@@ -335,14 +335,14 @@
##
## $SFORB
## Z0_b1 Z0_b2 Z3_b1 Z3_b2
-## 2.4471355 0.0075125 0.0800068 0.0000000
+## 2.4471329 0.0075123 0.0800074 0.0000000
##
## $distimes
## DT50 DT90 DT50_Z0_b1 DT50_Z0_b2 DT50_Z3_b1 DT50_Z3_b2
-## Z0 0.3043 1.1848 0.28325 92.266 NA NA
+## Z0 0.3043 1.1848 0.28325 92.268 NA NA
## Z1 1.5148 5.0320 NA NA NA NA
## Z2 1.6414 5.4526 NA NA NA NA
-## Z3 NA NA NA NA 8.6636 Inf</code></pre>
+## Z3 NA NA NA NA 8.6635 Inf</code></pre>
<p>It is clear the degradation rate of Z3 towards the end of the experiment is very low as DT50_Z3_b2 (the second Eigenvalue of the system of two differential equations representing the SFORB system for Z3, corresponding to the slower rate constant of the DFOP model) is reported to be infinity. However, this appears to be a feature of the data.</p>
</div>
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