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<div class="colorscripter-code" style="color:#010101;font-family:Consolas, 'Liberation Mono', Menlo, Courier, monospace !important; position:relative !important;overflow:auto"><table cellpadding="0" cellspacing="0" class="colorscripter-code-table" style="margin:0;padding:0;border:none;background-color:#fafafa;border-radius:4px;"> <tbody> <tr> <td style="padding:6px;border-right:2px solid #e5e5e5"> <div style="margin:0;padding:0;word-break:normal;text-align:right;color:#666;font-family:Consolas, 'Liberation Mono', Menlo, Courier, monospace !important;line-height:130%"> <div style="line-height:130%">1</div> <div style="line-height:130%">2</div> <div style="line-height:130%">3</div> <div style="line-height:130%">4</div> <div style="line-height:130%">5</div> <div style="line-height:130%">6</div> <div style="line-height:130%">7</div> <div style="line-height:130%">8</div> <div style="line-height:130%">9</div> <div style="line-height:130%">10</div> <div style="line-height:130%">11</div> <div style="line-height:130%">12</div> <div style="line-height:130%">13</div> <div style="line-height:130%">14</div> <div style="line-height:130%">15</div> <div style="line-height:130%">16</div> <div style="line-height:130%">17</div> <div style="line-height:130%">18</div> <div style="line-height:130%">19</div> <div style="line-height:130%">20</div> <div style="line-height:130%">21</div> <div style="line-height:130%">22</div> <div style="line-height:130%">23</div> </div> </td> <td style="padding:6px 0;text-align:left"> <div style="margin:0;padding:0;color:#010101;font-family:Consolas, 'Liberation Mono', Menlo, Courier, monospace !important;line-height:130%"> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#999999">#</span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#999999"># 따라하며 배우는 파이썬과 데이터과학(생능출판사 2020)</span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#999999"># LAB 14-2 데이터 80%로 학습하여 예측한 결과와 실제 데이터 비교, 382쪽</span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#999999">#</span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#a71d5d">import</span> numpy <span style="color:#a71d5d">as</span> np </div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#a71d5d">from</span> sklearn <span style="color:#a71d5d">import</span> linear_model <span style="color:#999999"># scikit-learn 모듈을 가져온다</span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#a71d5d">from</span> sklearn <span style="color:#a71d5d">import</span> datasets</div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#a71d5d">import</span> matplotlib.pyplot <span style="color:#a71d5d">as</span> plt</div> <div style="padding:0 6px; white-space:pre; line-height:130%"> </div> <div style="padding:0 6px; white-space:pre; line-height:130%">diabetes <span style="color:#a71d5d">=</span> datasets.load_diabetes()</div> <div style="padding:0 6px; white-space:pre; line-height:130%">regr <span style="color:#a71d5d">=</span> linear_model.LinearRegression() </div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#999999"># 학습 데이터와 테스트 데이터를 분리한다. </span></div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#a71d5d">from</span> sklearn.model_selection <span style="color:#a71d5d">import</span> train_test_split</div> <div style="padding:0 6px; white-space:pre; line-height:130%">X_train, X_test, y_train, y_test <span style="color:#a71d5d">=</span> train_test_split(diabetes.data,</div> <div style="padding:0 6px; white-space:pre; line-height:130%"> diabetes.target,</div> <div style="padding:0 6px; white-space:pre; line-height:130%"> test_size<span style="color:#a71d5d">=</span><span style="color:#0099cc">0.</span><span style="color:#0099cc">2</span>) </div> <div style="padding:0 6px; white-space:pre; line-height:130%">regr.fit(X_train, y_train)</div> <div style="padding:0 6px; white-space:pre; line-height:130%"><span style="color:#066de2">print</span>(regr.coef_, regr.intercept_)</div> <div style="padding:0 6px; white-space:pre; line-height:130%"> </div> <div style="padding:0 6px; white-space:pre; line-height:130%">y_pred <span style="color:#a71d5d">=</span> regr.predict(X_test)</div> <div style="padding:0 6px; white-space:pre; line-height:130%"> </div> <div style="padding:0 6px; white-space:pre; line-height:130%">plt.scatter(y_pred, y_test)</div> <div style="padding:0 6px; white-space:pre; line-height:130%">plt.show()</div> </div> <div style="text-align:right;margin-top:-13px;margin-right:5px;font-size:9px;font-style:italic"><a href="http://colorscripter.com/info#e" style="color:#e5e5e5text-decoration:none" target="_blank">Colored by Color Scripter</a></div> </td> <td style="vertical-align:bottom;padding:0 2px 4px 0"><a href="http://colorscripter.com/info#e" style="text-decoration:none;color:white" target="_blank"><span style="font-size:9px;word-break:normal;background-color:#e5e5e5;color:white;border-radius:10px;padding:1px">cs</span></a></td> </tr> </tbody></table></div>
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