Tag:In line

  • Select rows or columns from dataframe in pandas

    Time:2021-9-12

    Original link:http://bbs.fishc.com/thread-7… import numpy as np import pandas as pd from pandas import Sereis, DataFrame ser = Series(np.arange(3.)) data = DataFrame(np.arange(16).reshape(4,4),index=list(‘abcd’),columns=list(‘wxyz’)) data[‘w’]   # Select the ‘W’ column in the table, use the class dictionary attribute, and return the series type data.w     # Select the ‘W’ column in the table, use the point attribute, […]