Pandas 选项和自定义

import pandas as pd
print ("display.max_rows = ", pd.get_option("display.max_rows"))

display.max_rows =  60

import pandas as pd
print ("display.max_columns = ", pd.get_option("display.max_columns"))

display.max_columns =  20

import pandas as pd

print ("before set display.max_rows = ", pd.get_option("display.max_rows")) 

pd.set_option("display.max_rows",80)
print ("after set display.max_rows = ", pd.get_option("display.max_rows"))

before set display.max_rows =  60
after set display.max_rows =  80

import pandas as pd

print ("before set display.max_columns = ", pd.get_option("display.max_columns")) 

pd.set_option("display.max_columns",32)
print ("after set display.max_columns = ", pd.get_option("display.max_columns"))

before set display.max_columns = 20
after set display.max_columns =  32

import pandas as pd

pd.set_option("display.max_rows",32)
print ("after set display.max_rows = ", pd.get_option("display.max_rows")) 

pd.reset_option("display.max_rows")
print ("reset display.max_rows = ", pd.get_option("display.max_rows"))

after set display.max_rows =  32
reset display.max_rows =  60

import pandas as pd

pd.describe_option("display.max_rows")

display.max_rows : int
    If max_rows is exceeded, switch to truncate view. Depending on
    `large_repr`, objects are either centrally truncated or printed as
    a summary view. 'None' value means unlimited.

    In case python/IPython is running in a terminal and `large_repr`
    equals 'truncate' this can be set to 0 and pandas will auto-detect
    the height of the terminal and print a truncated object which fits
    the screen height. The IPython notebook, IPython qtconsole, or
    IDLE do not run in a terminal and hence it is not possible to do
    correct auto-detection.
    [default: 60] [currently: 60]

import pandas as pd
with pd.option_context("display.max_rows",10):
   print(pd.get_option("display.max_rows"))
print(pd.get_option("display.max_rows"))

10
60

import warnings
import numpy as np
import pandas as pd
warnings.filterwarnings('ignore')  # 关闭运行时的警告
np.set_printoptions(linewidth=100, suppress=True)   # 打印numpy时设置显示宽度，并且不用科学计数法显示
pd.set_option('display.width', 100)   # pandas设置显示宽度
pd.set_option('precision', 1)   # 设置显示数值的精度
pd.set_option('display.max_columns', 100)   # 设置显示最大列数
pd.set_option('display.max_rows', 120)    # 设置显示最大行数

import pandas as pd
pd.set_option('display.max_rows', 100)
pd.set_option('display.max_columns', 1000)
pd.set_option("display.max_colwidth",1000)
pd.set_option('display.width',1000)

import pandas as pd
pd.set_option('display.max_rows', 100,'display.max_columns', 1000,"display.max_colwidth",1000,'display.width',1000)