1+ import pandas as pd
2+ import numpy as np
3+ import matplotlib .pyplot as plt
4+ 5+ def draw_pie ():
6+ 7+ series = pd .Series (3 * np .random .rand (4 ), index = ["1" , "2" , "3" , "4" ], name = "series" )
8+ series .plot .pie (figsize = (6 , 6 ));
9+ plt .show ()
10+ 11+ 12+ def draw_pie1 ():
13+ df = pd .DataFrame (
14+ 3 * np .random .rand (4 , 2 ), index = ["a" , "b" , "c" , "d" ], columns = ["x" , "y" ])
15+ df .plot .pie (subplots = True , figsize = (8 , 4 ), legend = False )
16+ plt .show ()
17+ 18+ def draw_pie2 ():
19+ series = pd .Series (3 * np .random .rand (4 ), index = ["1" , "2" , "3" , "4" ], name = "series" )
20+ series .plot .pie (
21+ labels = ["A" , "B" , "C" , "D" ],
22+ colors = ["r" , "g" , "b" , "c" ],
23+ autopct = "%.2f" ,
24+ fontsize = 20 ,
25+ figsize = (6 , 6 ),)
26+ plt .show ()
27+ 28+ def draw_pie3 ():
29+ series = pd .Series ([0.1 ] * 4 , index = ["a" , "b" , "c" , "d" ], name = "series2" )
30+ series .plot .pie (figsize = (6 , 6 ))
31+ plt .show ()
32+ 33+ import pandas as pd
34+ import numpy as np
35+ import matplotlib .pyplot as plt
36+ from pandas .plotting import scatter_matrix
37+ def draw_pie4 ():
38+ 39+ df = pd .DataFrame (np .random .randn (1000 , 4 ), columns = ["a" , "b" , "c" , "d" ])
40+ 41+ scatter_matrix (df , alpha = 0.2 , figsize = (6 , 6 ), diagonal = "kde" )
42+ plt .show ()
43+ 44+ if __name__ == '__main__' :
45+ draw_pie4 ()
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