Python:pandas Learning Notes (1) __python

Recently started using Python data analysis, pandas as Python in the data analysis of a big weapon, naturally can not miss. Today, let's introduce some of the basic operations of Pandas:

1. First, you need to import the appropriate Python module and name:
Import Pandas as PD
Import NumPy as NP
Import Matplotlib.pyplot as Plt
2. Second, build a simple dataframe:
(1) Create a one-dimensional array s:
s = PD. Series ([1,3,5,3,8,9])

(2) Create a date item:

(3) Create a simple dataframe, named DF:

(4) The internal structure of DF is as follows:

3. Draw the graphics of DF:

4. Read a CSV file containing data on smoking and age of death, named PDF,

5. The internal data structure is shown below:

At present, this article only shows some basic functions of pandas, which will be supplemented and perfected with the further study.