add code

Author: beginner-fei

chaoxi/Pandas2/pandas_example1.py

@@ -0,0 +1,45 @@
+import pandas as pd
+import numpy as np
+import matplotlib.pyplot as plt
+
+def draw_pie():
+
+    series = pd.Series(3 * np.random.rand(4), index=["1", "2", "3", "4"], name="series")
+    series.plot.pie(figsize=(6, 6));
+    plt.show()
+
+
+def draw_pie1():
+    df = pd.DataFrame(
+        3 * np.random.rand(4, 2), index=["a", "b", "c", "d"], columns=["x", "y"])
+    df.plot.pie(subplots=True, figsize=(8, 4), legend=False)
+    plt.show()
+
+def draw_pie2():
+    series = pd.Series(3 * np.random.rand(4), index=["1", "2", "3", "4"], name="series")
+    series.plot.pie(
+        labels=["A", "B", "C", "D"],
+        colors=["r", "g", "b", "c"],
+        autopct="%.2f",
+        fontsize=20,
+        figsize=(6, 6),)
+    plt.show()
+
+def draw_pie3():
+    series = pd.Series([0.1] * 4, index=["a", "b", "c", "d"], name="series2")
+    series.plot.pie(figsize=(6, 6))
+    plt.show()
+
+import pandas as pd
+import numpy as np
+import matplotlib.pyplot as plt
+from pandas.plotting import scatter_matrix
+def draw_pie4():
+
+    df = pd.DataFrame(np.random.randn(1000, 4), columns=["a", "b", "c", "d"])
+
+    scatter_matrix(df, alpha=0.2, figsize=(6, 6), diagonal="kde")
+    plt.show()
+
+if __name__ == '__main__':
+    draw_pie4()

chaoxi/README.md

@@ -9,6 +9,8 @@ Python技术 公众号文章代码库
 
 ## 实例代码 
 
+[神器 Pandas 绘图大全(上)！](https://github.com/JustDoPython/python-examples/tree/master/chaoxi/Pandas2) 神器 Pandas 绘图大全(中)！
+
 [神器 Pandas 绘图大全(上)！](https://github.com/JustDoPython/python-examples/tree/master/chaoxi/Pandas1) 神器 Pandas 绘图大全(上)！
 
 [神器-可视化分析之Basemap实战详解（二）](https://github.com/JustDoPython/python-examples/tree/master/chaoxi/BaseMap) 神器-可视化分析之Basemap实战详解（二）