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<html><head><meta charset="UTF-8" /><title>propeller.problems.PSB2.bouncing-balls documentation</title><link rel="stylesheet" type="text/css" href="css/default.css" /><link rel="stylesheet" type="text/css" href="css/highlight.css" /><script type="text/javascript" src="js/highlight.min.js"></script><script type="text/javascript" src="js/jquery.min.js"></script><script type="text/javascript" src="js/page_effects.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><div id="header"><h2>Generated by <a href="https://github.com/weavejester/codox">Codox</a></h2><h1><a href="index.html"><span class="project-title"><span class="project-name">Propeller</span> <span class="project-version">0.3.0</span></span></a></h1></div><div class="sidebar primary"><h3 class="no-link"><span class="inner">Project</span></h3><ul class="index-link"><li class="depth-1 "><a href="index.html"><div class="inner">Index</div></a></li></ul><h3 class="no-link"><span class="inner">Topics</span></h3><ul><li class="depth-1 "><a href="A_Guide_To_Propeller.html"><div class="inner"><span>A Guide to Propeller</span></div></a></li><li class="depth-1 "><a href="Adding_Genetic_Operators.html"><div class="inner"><span>Adding Genetic Operators</span></div></a></li><li class="depth-1 "><a href="Adding_Problem.html"><div class="inner"><span>Adding a Problem</span></div></a></li><li class="depth-1 "><a href="Adding_Selection_Method.html"><div class="inner"><span>Adding a Selection Method</span></div></a></li></ul><h3 class="no-link"><span class="inner">Namespaces</span></h3><ul><li class="depth-1"><div class="no-link"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>propeller</span></div></div></li><li class="depth-2 branch"><a href="propeller.genome.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>genome</span></div></a></li><li class="depth-2 branch"><a href="propeller.gp.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>gp</span></div></a></li><li class="depth-2"><div class="no-link"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>problems</span></div></div></li><li class="depth-3"><div class="no-link"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>PSB2</span></div></div></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.basement.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>basement</span></div></a></li><li class="depth-4 branch current"><a href="propeller.problems.PSB2.bouncing-balls.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>bouncing-balls</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.bowling.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>bowling</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.camel-case.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>camel-case</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.dice-game.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>dice-game</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.fizz-buzz.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>fizz-buzz</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.fuel-cost.html"><div class="inner"><span class="tree"><span class="top"></span><span 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class="bottom"></span></span><span>math</span></div></a></li><li class="depth-3"><a href="propeller.tools.metrics.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>metrics</span></div></a></li><li class="depth-2 branch"><a href="propeller.utils.html"><div class="inner"><span class="tree" style="top: -176px;"><span class="top" style="height: 185px;"></span><span class="bottom"></span></span><span>utils</span></div></a></li><li class="depth-2"><a href="propeller.variation.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>variation</span></div></a></li></ul></div><div class="sidebar secondary"><h3><a href="#top"><span class="inner">Public Vars</span></a></h3><ul><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var--main"><div class="inner"><span>-main</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var-error-function"><div class="inner"><span>error-function</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var-instructions"><div class="inner"><span>instructions</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var-map-vals-input"><div class="inner"><span>map-vals-input</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var-map-vals-output"><div class="inner"><span>map-vals-output</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.bouncing-balls.html#var-train-and-test-data"><div class="inner"><span>train-and-test-data</span></div></a></li></ul></div><div class="namespace-docs" id="content"><h1 class="anchor" id="top">propeller.problems.PSB2.bouncing-balls</h1><div class="doc"><div class="markdown"><p>BOUNCING BALLS from PSB2</p>
<p>Given a starting height and a height after the first bounce of a dropped ball, calculate the bounciness index (height of first bounce / starting height). Then, given a number of bounces, use the bounciness index to calculate the total distance that the ball travels across those bounces.</p>
<p>Source: <a href="https://arxiv.org/pdf/2106.06086.pdf">https://arxiv.org/pdf/2106.06086.pdf</a></p>
</div></div><div class="public anchor" id="var--main"><h3>-main</h3><div class="usage"><code>(-main &amp; args)</code></div><div class="doc"><div class="markdown"><p>Runs propel-gp, giving it a map of arguments.</p>
</div></div></div><div class="public anchor" id="var-error-function"><h3>error-function</h3><div class="usage"><code>(error-function argmap data individual)</code></div><div class="doc"><div class="markdown"><p>Finds the behaviors and errors of an individual: Error is 0 if the value and the programs selected behavior match, or 1 if they differ, or 1000000 if no behavior is produced. The behavior is here defined as the final top item on the FLOAT stack.</p>
</div></div></div><div class="public anchor" id="var-instructions"><h3>instructions</h3><div class="usage"></div><div class="doc"><div class="markdown"><p>Stack-specific instructions, input instructions, close, and constants</p>
</div></div></div><div class="public anchor" id="var-map-vals-input"><h3>map-vals-input</h3><div class="usage"><code>(map-vals-input i)</code></div><div class="doc"><div class="markdown"><p>Returns all the input values of a map (specific helper method for bouncing-balls)</p>
</div></div></div><div class="public anchor" id="var-map-vals-output"><h3>map-vals-output</h3><div class="usage"><code>(map-vals-output i)</code></div><div class="doc"><div class="markdown"><p>Returns the output values of a map (specific helper method for bouncing-balls)</p>
</div></div></div><div class="public anchor" id="var-train-and-test-data"><h3>train-and-test-data</h3><div class="usage"></div><div class="doc"><div class="markdown"><p>Data taken from <a href="https://zenodo.org/record/5084812">https://zenodo.org/record/5084812</a></p>
</div></div></div></div></body></html>