Merge pull request #54 from pykale/refine

Fixed section 2.3, exercise 7
pykale · Feb 6, 2024 · 618a431 · 618a431
2 parents dbce912 + b6d86c9
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diff --git a/content/02-linear-reg/extension-limitation.ipynb b/content/02-linear-reg/extension-limitation.ipynb
@@ -1083,7 +1083,7 @@
     "boston_df[\"resid1\"] = boston_df.crim - boston_df.pred1\n",
     "\n",
     "\n",
-    "boston_df[\"ptratio2\"] = boston_df.nox**3\n",
+    "boston_df[\"ptratio2\"] = boston_df.ptratio**2\n",
     "# Quadratic fit\n",
     "X2 = boston_df[[\"ptratio\", \"ptratio2\"]].values\n",
     "regr.fit(X2, y)\n",

diff --git a/content/index.md b/content/index.md
@@ -70,7 +70,7 @@ Besides the prerequisites, the 10 chapters can be grouped into two parts: part o
 <table>
   <tbody>
     <tr>
-      <td align="center"><a href="https://haipinglu.github.io/"><img src="https://raw.githubusercontent.com/haipinglu/hugo-academic/main/content/authors/haiping-lu/avatar.png" width="200px;" alt="Haiping Lu"/><br /><sub><b>Haiping Lu</b></sub></a></td>
+      <td align="center"><a href="https://haipinglu.github.io/"><img src="https://raw.githubusercontent.com/haipinglu/hugo-academic/main/content/authors/haiping-lu/avatar.jpg" width="200px;" alt="Haiping Lu"/><br /><sub><b>Haiping Lu</b></sub></a></td>
       <td align="center"><a href="https://shuo-zhou.github.io/"><img src="https://raw.githubusercontent.com/shuo-zhou/shuo-zhou.github.io/master/assets/img/profile.png" width="200px;" alt="Shuo Zhou"/><br /><sub><b>Shuo Zhou</b></sub></a></td>
     </tr>
   </tbody>