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<a class="headtitle" href="munipack.html">Munipack</a>
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<section>
<h1 class="noindent">Growth Curve Report</h1>
<p class="abstract">
The optional parameter <samp>--verbose</samp> to <samp>gphot</samp>
invokes addiding of GROWFUNC and GROWDATA extension to all files
together with plotting results to a graphical PNG file.
</p>
<div class="table">
<table>
<caption>GROWFUNC extension</caption>
<tr><th>Column</th><th>Description</th><th></th></tr>
<tr><td>R</td><td>radius</td><td>pix</td></tr>
<tr><td>GROWCURVE</td><td>growth curve value at R</td><td></td></tr>
<tr><td>RADIALPROFILE</td><td>Radial profile at R</td><td></td></tr>
</table>
</div>
<p>
GROWFUNC tabulates growth-curve at more sampled radiuses than
extension GROWCURVE contains. The curve is interpolated by
<a href="https://en.wikipedia.org/wiki/Smoothing_spline">smoothing
cubic spline</a> from the derived curve.
</p>
<div class="table">
<table>
<caption>GROWDATA extension</caption>
<tr><th>Column</th><th>Description</th></tr>
<tr><td>GROWCURVE<i>i</i></td><td>Empirical growth-curve for <i>i</i>-th aperture.</td></tr>
<tr><td>GROWCURVEERR<i>i</i></td><td>Statistical error of GROWCURVE</td></tr>
<tr><td>RESGROW<i>i</i></td><td>Residuals.</td></tr>
</table>
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<p>
GROWDATA extension stores empirical growth-curves of stars
on image. Growth curves of all stars are plotted in light blue,
ones used for growth-curve construction in dark blue.
Residuals between final curve and the data are plotted by RESGROW
column. Order number in GROWDATA refers to GROWPHOT extension.
</p>
<figure>
<img class="figure" src="0716_111R.png" alt="Grow Curve Report"
title="Grow Curve Report">
<figcaption>
An example of growth-curve report image.
</figcaption>
</figure>
<h2>See Also</h2>
<p>
<a href="grow.html">Growth Curve Overview</a>.
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</section>
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© 1997 – 2025
<a href="https://integral.physics.muni.cz/" title="author's homepage"
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