Data 100: Principles and Techniques of Data Science onhttps://notes.bencuan.me/data100/Recent content in Data 100: Principles and Techniques of Data Science onHugoen<link>https://notes.bencuan.me/data100/The-Data-100-Cheat-Sheet/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://notes.bencuan.me/data100/The-Data-100-Cheat-Sheet/</guid><description><h1 id="the-data-100-cheat-sheet"> The Data 100 Cheat Sheet <a class="anchor" href="#the-data-100-cheat-sheet">#</a> </h1> <p>Created: December 14, 2020 8:49 AM Last Edited: December 22, 2020 7:41 PM</p> <h1 id="resources"> Resources <a class="anchor" href="#resources">#</a> </h1> <p><strong>Textbook:</strong> <a href="http://www.textbook.ds100.org/ch/01/lifecycle_intro.html" rel="noopener">http://www.textbook.ds100.org/ch/01/lifecycle_intro.html</a></p> <h1 id="pandas-cheat-sheet"> Pandas Cheat Sheet <a class="anchor" href="#pandas-cheat-sheet">#</a> </h1> <p>[[The Data 100 Cheat Sheet 69de92fa14684dd1b94defbbb8983019 Pandas_Cheat_Sheet.pdf]]</p> <h1 id="data-science-lifecycle"> Data Science Lifecycle <a class="anchor" href="#data-science-lifecycle">#</a> </h1> <p>![[/data100/img/Untitled.png]]</p> <p> <a href="http://www.ds100.org/fa20/lecture/lec01/" rel="noopener">http://www.ds100.org/fa20/lecture/lec01/</a></p> <h1 id="data-sampling"> Data Sampling <a class="anchor" href="#data-sampling">#</a> </h1> <p> <a href="https://docs.google.com/presentation/d/1pI4shcpHeNU9vjOaG9l7cYfPe4GWy6hXICpQR8zTH1A/edit#slide=id.g8960eb33b8_0_151" rel="noopener">https://docs.google.com/presentation/d/1pI4shcpHeNU9vjOaG9l7cYfPe4GWy6hXICpQR8zTH1A/edit#slide=id.g8960eb33b8_0_151</a></p> <h2 id="types-of-samples"> Types of Samples <a class="anchor" href="#types-of-samples">#</a> </h2> <p>A <strong>convenience sample</strong> is whoever you can get ahold of.</p> <ul> <li>Not a good idea for inference!</li> <li>Haphazard ≠ random.</li> <li>Sources of bias can introduce themselves in ways you may not think of!</li> </ul> <p>In a <strong>quota sample</strong>, you first specify your desired breakdown of various subgroups, and then reach those targets however you can.</p></description></item></channel></rss>