Pandas库

pandas基于numpy，常与matplotlib共同使用

pd.Series(range(20))
Out[15]: 
0      0
1      1
2      2
3      3
4      4
5      5
6      6
7      7
8      8
9      9
10    10
11    11
12    12
13    13
14    14
15    15
16    16
17    17
18    18
19    19
dtype: int64

pandas库主要提供两种数据类型：Series and Dataframe

Series represents one-dimensional data type while Dataframe represents two-dimensional and multi-dimensional data type.

various operation can be done through above-mentioned data type including basic operation, arithmetic operation,  characteristic op, relate op.

Series in Pandas        

 搜索index要加''

Series对齐操作

 dataframe类型

 Dataframe由公用相同索引的一组列构成（是一个表格）