iloc python example

Let's create a data frame by hand.[Python]View PlainCopy Import NumPy as NP Import Pandas as PD DF = PD. DataFrame (Np.arange (0,2). Reshape (3), columns=list (' abc ' ) DF is such a dropSo how do you choose the three ways to pick the data?One, when each column already has column name, with DF [' a '] can choose to take out a whole column of data. If you know column names and index, and both are well-entered, you can choose.

I believe many people like me in the process of learning Python,pandas data selection and modification has a great deal of confusion (perhaps by the Matlab) impact ... To this day finally completely figure out ... Let's start with a data box manually. Import NumPy as NP import pandas as PD DF = PD. Dataframe (Np.arange (0,60,2). Reshape (10,3), columns=list (' abc ')DF is such a drop So what are the three ways to choose the data? First, when column

Python decorator use example and actual application example, python example Test 1 Deco is running, but myfunc is not running Copy codeThe Code is as follows:Def deco (func ):Print 'before func'Return func Def myfunc ():Print 'myfunc () called'Myfunc = deco (myfunc) Test 2

Details about the Python mail sending example and the python mail sending example Python needs two modules: smtplib and email. It is also because we can import these modules in our actual work that it makes processing tasks easier. Today, let's take a good look at sending em

Boost. python compilation and example, boost. python example Welcome to reprint, reprint please indicate the original address: http://blog.csdn.net/majianfei1023/article/details/46781581 Linux compiled boost link: http://blog.csdn.net/majianfei1023/article/details/46761029 Yesterday, we compiled and installed boost.

Python combination mode and responsibility chain mode programming example, python example Combination ModeWe regard the Composite mode as a complex attribute structure. In fact, there are basically three roles: trunk (defining some operations for leaf) and branches (many branches on the trunk) and the leaf (the object

Python list and metadata definition and use operation example, python example This document describes how to define and use Python lists and metadata groups. We will share this with you for your reference. The details are as follows: # Coding = utf8print ''' the list and ele

Example of zip () function usage in Python and python example This article describes the definition and usage of the zip () function in Python. I believe it is of some reference value for beginners of Python. The details are as fo

The example explains how to call and define functions in Python, and the example explains python Call the function: #! /Usr/bin/env python3 #-*-coding: UTF-8-*-# function call >>> abs (100) 100 >>> abs (-110) 110 >>> abs (12.34) 12.34 >>> abs (1, 2) Traceback (most recent call last): File " Define functions: #! /Usr/bi

Python: Simple Method example for deleting the same element in the list, python example This example describes how to delete the same elements in the list in Python. We will share this with you for your reference. The details are

[Python example] Using Python to insert an example in Excel I used Python to handle excel. I used openpyxl and pyexcel.At present, I think other functions (such as using the formula in the lattice) should be used in addition to the aggregate functions)You can use xlwings to

An example of Python class usage and an example of python This example describes how to use Python classes. Share it with you for your reference. The details are as follows: First look at a piece of code: #! /Usr/bin/env python

Python Plotting Method example, python plotting example This example describes the python plotting method. Share it with you for your reference. The details are as follows: #-*-Coding: UTF-8-*-import matplotlib. pyplot as pltdef m

Python decorator usage example summary, python decorator usage example This document describes how to use the Python decorator. We will share this with you for your reference. The details are as follows: I. What is the decorator? The pyt