Python 中pandas.read_excel详细介绍


Posted in Python onJune 23, 2017

Python 中pandas.read_excel详细介绍

#coding:utf-8
import pandas as pd
import numpy as np

filefullpath = r"/home/geeklee/temp/all_gov_file/pol_gov_mon/downloads/1.xls"
#filefullpath = r"/home/geeklee/temp/all_gov_file/pol_gov_mon/downloads/26368f3a-ea03-46b9-8033-73615ed07816.xls"
df = pd.read_excel(filefullpath,skiprows=[0])
#df = pd.read_excel(filefullpath, sheetname=[0,2],skiprows=[0])
#sheetname指定为读取几个sheet,sheet数目从0开始
#如果sheetname=[0,2],那代表读取第0页和第2页的sheet
#skiprows=[0]代表读取跳过的行数第0行,不写代表不跳过标题
#df = pd.read_excel(filefullpath, sheetname=None ,skiprows=[0])

print df
print type(df)
#若果有多页,type(df)就为<type 'dict'>
#如果就一页,type(df)就为<class 'pandas.core.frame.DataFrame'>
#{0:dataframe,1:dataframe,2:dataframe}
pandas.read_excel(io, sheetname=0, header=0, skiprows=None, skip_footer=0,
 index_col=None, names=None, parse_cols=None, parse_dates=False, date_parser=None,
 na_values=None, thousands=None, convert_float=True, has_index_names=None, converters=None,
 engine=None, squeeze=False, **kwds)

Read an Excel table into a pandas DataFrame

参数解析:

io : string, path object (pathlib.Path or py._path.local.LocalPath),

  file-like object, pandas ExcelFile, or xlrd workbook. The string could be a URL. Valid URL schemes include http, ftp, s3, and file. For file URLs, a host is expected. For instance, a local file could be file://localhost/path/to/workbook.xlsx

sheetname : string, int, mixed list of strings/ints, or None, default 0

  Strings are used for sheet names, Integers are used in zero-indexed sheet positions.

  Lists of strings/integers are used to request multiple sheets.

  Specify None to get all sheets.

  str|int -> DataFrame is returned. list|None -> Dict of DataFrames is returned, with keys representing sheets.

  Available Cases

    Defaults to 0 -> 1st sheet as a DataFrame
    1 -> 2nd sheet as a DataFrame
    “Sheet1” -> 1st sheet as a DataFrame
    [0,1,”Sheet5”] -> 1st, 2nd & 5th sheet as a dictionary of DataFrames
    None -> All sheets as a dictionary of DataFrames

header : int, list of ints, default 0

  Row (0-indexed) to use for the column labels of the parsed DataFrame. If a list of integers is passed those row positions will be combined into a MultiIndex

skiprows : list-like

  Rows to skip at the beginning (0-indexed)

skip_footer : int, default 0

  Rows at the end to skip (0-indexed)

index_col : int, list of ints, default None

  Column (0-indexed) to use as the row labels of the DataFrame. Pass None if there is no such column. If a list is passed, those columns will be combined into a MultiIndex

names : array-like, default None

  List of column names to use. If file contains no header row, then you should explicitly pass header=None

converters : dict, default None

  Dict of functions for converting values in certain columns. Keys can either be integers or column labels, values are functions that take one input argument, the Excel cell content, and return the transformed content.

parse_cols : int or list, default None

    If None then parse all columns,
    If int then indicates last column to be parsed
    If list of ints then indicates list of column numbers to be parsed
    If string then indicates comma separated list of column names and column ranges (e.g. “A:E” or “A,C,E:F”)

squeeze : boolean, default False

  If the parsed data only contains one column then return a Series

na_values : list-like, default None

  List of additional strings to recognize as NA/NaN

thousands : str, default None

  Thousands separator for parsing string columns to numeric. Note that this parameter is only necessary for columns stored as TEXT in Excel, any numeric columns will automatically be parsed, regardless of display format.

keep_default_na : bool, default True

  If na_values are specified and keep_default_na is False the default NaN values are overridden, otherwise they're appended to

verbose : boolean, default False

  Indicate number of NA values placed in non-numeric columns

engine: string, default None

  If io is not a buffer or path, this must be set to identify io. Acceptable values are None or xlrd

convert_float : boolean, default True

  convert integral floats to int (i.e., 1.0 ?> 1). If False, all numeric data will be read in as floats: Excel stores all numbers as floats internally

has_index_names : boolean, default None

  DEPRECATED: for version 0.17+ index names will be automatically inferred based on index_col. To read Excel output from 0.16.2 and prior that had saved index names, use True.

return返回的结果

parsed : DataFrame or Dict of DataFrames

  DataFrame from the passed in Excel file. See notes in sheetname argument for more information on when a Dict of Dataframes is returned.

感谢阅读,希望能帮助到大家,谢谢大家对本站的支持!

Python 相关文章推荐
Python中的CURL PycURL使用例子
Jun 01 Python
Python中decorator使用实例
Apr 14 Python
浅谈在django中使用filter()(即对QuerySet操作)时踩的坑
Mar 31 Python
解决json中ensure_ascii=False的问题
Apr 03 Python
Python run()函数和start()函数的比较和差别介绍
May 03 Python
Python3 搭建Qt5 环境的方法示例
Jul 16 Python
浅谈Python __init__.py的作用
Oct 28 Python
python实现定时发送邮件到指定邮箱
Dec 23 Python
用python批量下载apk
Dec 29 Python
Pandas的数据过滤实现
Jan 15 Python
Python使用UDP实现720p视频传输的操作
Apr 24 Python
pandas提升计算效率的一些方法汇总
May 30 Python
python3.4用函数操作mysql5.7数据库
Jun 23 #Python
Python实现树的先序、中序、后序排序算法示例
Jun 23 #Python
详解python中 os._exit() 和 sys.exit(), exit(0)和exit(1) 的用法和区别
Jun 23 #Python
Python数据操作方法封装类实例
Jun 23 #Python
Python守护线程用法实例
Jun 23 #Python
python使用fcntl模块实现程序加锁功能示例
Jun 23 #Python
Django自定义认证方式用法示例
Jun 23 #Python
You might like
PHP Token(令牌)设计
2008/03/15 PHP
Apache+php+mysql在windows下的安装与配置图解(最新版)
2008/11/30 PHP
解析PHP的Yii框架中cookie和session功能的相关操作
2016/03/17 PHP
PHP微信开发之查询城市天气
2016/06/23 PHP
php 伪造HTTP_REFERER页面URL来源的三种方法
2016/09/22 PHP
php实现的redis缓存类定义与使用方法示例
2017/08/09 PHP
使用按钮控制以何种方式打开新窗口的属性介绍
2012/12/17 Javascript
JavaScript中的alert()函数使用技巧详解
2014/12/29 Javascript
asp.net+js实现金额格式化
2015/02/27 Javascript
JS实现控制表格内指定单元格内容对齐的方法
2015/03/30 Javascript
浅谈$(document)和$(window)的区别
2015/07/15 Javascript
jquery京东商城双11焦点图多图广告特效代码分享
2015/09/06 Javascript
基于JQuery实现图片上传预览与删除操作
2016/05/24 Javascript
用JS动态改变表单form里的action值属性的两种方法
2016/05/25 Javascript
jQuery视差滚动效果网页实现方法经验总结
2016/09/29 Javascript
浅谈js中的变量名和函数名重名
2017/02/13 Javascript
Vue报错:Uncaught TypeError: Cannot assign to read only property’exports‘ of object’#‘的解决方法
2017/06/17 Javascript
如何通过非数字与字符的方式实现PHP WebShell详解
2017/07/02 Javascript
angular之ng-template模板加载
2017/11/09 Javascript
vue裁切预览组件功能的实现步骤
2018/05/04 Javascript
基于JavaScript canvas绘制贝塞尔曲线
2018/12/25 Javascript
基于vue实现圆形菜单栏组件
2019/07/05 Javascript
javascript实现文字跑马灯效果
2020/06/18 Javascript
python脚本当作Linux中的服务启动实现方法
2019/06/28 Python
PyCharm License Activation激活码失效问题的解决方法(图文详解)
2020/03/12 Python
python和php学习哪个更有发展
2020/06/17 Python
浅谈html5与APP混合开发遇到的问题总结
2018/03/20 HTML / CSS
印度民族服装购物网站:BIBA
2019/08/05 全球购物
字符串str除首尾字符外的其他字符按升序排列
2013/03/08 面试题
普通党员对照检查材料
2014/08/28 职场文书
师德师风自我评价范文
2014/09/11 职场文书
小学生安全教育广播稿
2014/10/20 职场文书
《开国大典》教学反思
2016/02/16 职场文书
成人成长感言如何写?
2019/08/16 职场文书
python脚本框架webpy模板控制结构
2021/11/20 Python
深入讲解数据库中Decimal类型的使用以及实现方法
2022/02/15 MySQL