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<html><head><meta charset="UTF-8" /><title>propeller.problems.PSB2.twitter 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="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><li class="depth-1 "><a href="Experimentation.html"><div class="inner"><span>A Guide to Experimentation</span></div></a></li><li class="depth-1 "><a href="Genetic_Programming_Loop.html"><div class="inner"><span>Genetic Programming Loop</span></div></a></li><li class="depth-1 "><a href="Genome.html"><div class="inner"><span>Genome</span></div></a></li><li class="depth-1 "><a href="Intro.html"><div class="inner"><span>Introduction to Propeller</span></div></a></li><li class="depth-1 "><a href="Library_Reference.html"><div class="inner"><span>Library Reference</span></div></a></li><li class="depth-1 "><a href="Selection.html"><div class="inner"><span>Selection</span></div></a></li><li class="depth-1 "><a href="Simplification.html"><div class="inner"><span>Simplification</span></div></a></li><li class="depth-1 "><a href="Variation.html"><div class="inner"><span>Variation</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.core.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>core</span></div></a></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"><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 class="bottom"></span></span><span>fuel-cost</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.gcd.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>gcd</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.luhn.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>luhn</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.middle-character.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>middle-character</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.paired-digits.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>paired-digits</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.shopping-list.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>shopping-list</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.snow-day.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>snow-day</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.solve-boolean.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>solve-boolean</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.spin-words.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>spin-words</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.square-digits.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>square-digits</span></div></a></li><li class="depth-4 branch"><a href="propeller.problems.PSB2.substitution-cipher.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>substitution-cipher</span></div></a></li><li class="depth-4 current"><a href="propeller.problems.PSB2.twitter.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>twitter</span></div></a></li><li class="depth-3 branch"><a href="propeller.problems.simple-regression.html"><div class="inner"><span class="tree" style="top: -579px;"><span class="top" style="height: 588px;"></span><span class="bottom"></span></span><span>simple-regression</span></div></a></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>software</span></div></div></li><li class="depth-4 branch"><a href="propeller.problems.software.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.software.number-io.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>number-io</span></div></a></li><li class="depth-4"><a href="propeller.problems.software.smallest.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>smallest</span></div></a></li><li class="depth-3 branch"><a href="propeller.problems.string-classification.html"><div class="inner"><span class="tree" style="top: -114px;"><span class="top" style="height: 123px;"></span><span class="bottom"></span></span><span>string-classification</span></div></a></li><li class="depth-3"><a href="propeller.problems.valiant.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>valiant</span></div></a></li><li class="depth-2"><div class="no-link"><div class="inner"><span class="tree" style="top: -827px;"><span class="top" style="height: 836px;"></span><span class="bottom"></span></span><span>push</span></div></div></li><li class="depth-3"><a href="propeller.push.instructions.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>instructions</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.bool.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>bool</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.character.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>character</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.code.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>code</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.input-output.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>input-output</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.numeric.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>numeric</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.polymorphic.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>polymorphic</span></div></a></li><li class="depth-4 branch"><a href="propeller.push.instructions.string.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>string</span></div></a></li><li class="depth-4"><a href="propeller.push.instructions.vector.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>vector</span></div></a></li><li class="depth-3 branch"><a href="propeller.push.interpreter.html"><div class="inner"><span class="tree" style="top: -269px;"><span class="top" style="height: 278px;"></span><span class="bottom"></span></span><span>interpreter</span></div></a></li><li class="depth-3 branch"><a href="propeller.push.limits.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>limits</span></div></a></li><li class="depth-3"><a href="propeller.push.state.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>state</span></div></a></li><li class="depth-2 branch"><a href="propeller.selection.html"><div class="inner"><span class="tree" style="top: -393px;"><span class="top" style="height: 402px;"></span><span class="bottom"></span></span><span>selection</span></div></a></li><li class="depth-2 branch"><a href="propeller.session.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>session</span></div></a></li><li class="depth-2 branch"><a href="propeller.simplification.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>simplification</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>tools</span></div></div></li><li class="depth-3 branch"><a href="propeller.tools.calculus.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>calculus</span></div></a></li><li class="depth-3 branch"><a href="propeller.tools.character.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>character</span></div></a></li><li class="depth-3 branch"><a href="propeller.tools.distributions.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>distributions</span></div></a></li><li class="depth-3 branch"><a href="propeller.tools.math.html"><div class="inner"><span class="tree"><span class="top"></span><span 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.twitter.html#var--main"><div class="inner"><span>-main</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.twitter.html#var-error-function"><div class="inner"><span>error-function</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.twitter.html#var-instructions"><div class="inner"><span>instructions</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.twitter.html#var-random-int"><div class="inner"><span>random-int</span></div></a></li><li class="depth-1"><a href="propeller.problems.PSB2.twitter.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.twitter</h1><div class="doc"><div class="markdown"><p>=========== PROBLEM DESCRIPTION ============================= TWITTER from PSB2 Given a string representing a tweet, validate whether the tweet meets Twitter’s original character requirements. If the tweet has more than 140 characters, return the string “Too many characters”. If the tweet is empty, return the string “You didn’t type anything”. Otherwise, return “Your tweet has X characters”, where the X is the number of characters in the tweet.</p>
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<h1><a href="#source-httpsarxivorgpdf210606086pdf" id="source-httpsarxivorgpdf210606086pdf"></a>Source: <a href="https://arxiv.org/pdf/2106.06086.pdf">https://arxiv.org/pdf/2106.06086.pdf</a></h1>
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</div></div><div class="public anchor" id="var--main"><h3>-main</h3><div class="usage"><code>(-main & args)</code></div><div class="doc"><div class="markdown"><p>Runs propel-gp, giving it a map of arguments.</p>
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</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 program’s 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 STRING stack.</p>
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</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>
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</div></div></div><div class="public anchor" id="var-random-int"><h3>random-int</h3><div class="usage"><code>(random-int)</code></div><div class="doc"><div class="markdown"><p>Random integer between -100 and 100</p>
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</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"></div></div></div></div></body></html> |