Fix matplotlib warnings (#368)

* Use fill instead of shade * Use seaborn to avoid matplotlib warnings * Fix seaborn style warnings --------- Co-authored-by: mmcky <[email protected]>
QuantEcon · Oct 23, 2023 · 6778dce · 6778dce
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diff --git a/lectures/ols.md b/lectures/ols.md
@@ -66,6 +66,8 @@ import pandas as pd
 import statsmodels.api as sm
 from statsmodels.iolib.summary2 import summary_col
 from linearmodels.iv import IV2SLS
+import seaborn as sns
+sns.set_theme()
 ```
 
 ### Prerequisites
@@ -100,8 +102,6 @@ between GDP per capita and the protection against
 expropriation index
 
 ```{code-cell} python3
-plt.style.use('seaborn')
-
 df1.plot(x='avexpr', y='logpgp95', kind='scatter')
 plt.show()
 ```
@@ -701,4 +701,4 @@ for $\beta$, however `.solve()` is preferred as it involves fewer
 computations.
 
 ```{solution-end}
-```
+```
diff --git a/lectures/pandas_panel.md b/lectures/pandas_panel.md
@@ -361,15 +361,16 @@ Using this series, we can plot the average real minimum wage over the
 past decade for each country in our data set
 
 ```{code-cell} ipython
-%matplotlib inline
 import matplotlib.pyplot as plt
-plt.rcParams["figure.figsize"] = (11, 5)  #set default figure size
-import matplotlib
-matplotlib.style.use('seaborn')
+import seaborn as sns
+sns.set_theme()
+```
 
-merged.mean().sort_values(ascending=False).plot(kind='bar', title="Average real minimum wage 2006 - 2016")
+```{code-cell} ipython
+merged.mean().sort_values(ascending=False).plot(kind='bar',
+                                                title="Average real minimum wage 2006 - 2016")
 
-#Set country labels
+# Set country labels
 country_labels = merged.mean().sort_values(ascending=False).index.get_level_values('Country').tolist()
 plt.xticks(range(0, len(country_labels)), country_labels)
 plt.xlabel('Country')
@@ -468,12 +469,10 @@ minimum wages in 2016 for each continent.
 object
 
 ```{code-cell} python3
-import seaborn as sns
-
 continents = grouped.groups.keys()
 
 for continent in continents:
-    sns.kdeplot(grouped.get_group(continent).loc['2015'].unstack(), label=continent, shade=True)
+    sns.kdeplot(grouped.get_group(continent).loc['2015'].unstack(), label=continent, fill=True)
 
 plt.title('Real minimum wages in 2015')
 plt.xlabel('US dollars')
@@ -617,4 +616,4 @@ plt.show()
 ```
 
 ```{solution-end}
-```
+```