Programming VIP

Today we explore pandas.1, Basic knowledge summarySQLAlchemy module installationDatabase PostgreSQL download and installationIntroduction to PostgreSQLPandas+SQLAlchemy import data into PostgreSQLCode implementation of interaction between Python and various databases2, Start thinking1. SQLAlchemy module installationInstall the SQLAlchemy module ...

Introduce Numpy is an open source numerical calculation extension package for Python. Numpy supports common array and matrix operations. For the same numerical calculation task, using numpy is much simpler and more efficient than using Python directly.Numpy uses the ndarray object to handle multidimensional arrays, which is a fast and fle ...

2021 iFLYTEK - vehicle loan default prediction challenge Top1 - scheme learningbrief introductionThe purpose of auto loan default prediction is to establish a risk identification model to predict the borrowers who may default. The prediction result is whether the borrower may default, which belongs to the second category.In the competition of p ...

Author: Huan HaoSource: Hang Seng LIGHT cloud communityPandas is a Python software library, which provides a large number of functions and methods that enable us to process data quickly and easily. This paper will mainly introduce the practical data processing operation of pandas.Series of articles:[Pandas learning notes 01] powerful tool set f ...

I've heard that many bosses acquire knowledge from kaggle and process it into their own competition system In July this year, I started to participate in the big data competition. Now there are almost 10 competitions, all of which are structured competitions. Small competitions can still get into the Top ranking, but larger competitions are ...

After reading this article, I believe you will have a strong interest in reptiles and encourage yourself to learn reptiles. Here I wish you success in your studies! Target website: sister map network Environment: Python 3. X Related third-party modules: requests, beautiful oup4 Re: during the test, you only need to specify the variable path ...

This article mainly introduces the example code of Python's multi-threaded crawler to grab web page pictures. Xiaobian thinks it's very good. Now I'll share it with you and give you a reference. Let's follow Xiaobian and have a look target Well, we know that there are many beautiful and beautiful pictures when searching or browsing websites. ...

This article mainly introduces the examples of turtle drawing in Python, and shares several small examples of turtle drawing, which has certain reference value. Friends in need can learn about it In Python, turtles can not only draw simple black lines, but also draw more complex geometric shapes with different colors, and even fill shapes with ...

Send mail automatically After we make the report, we generally need to send it to others for viewing. For some reports that need to be sent every day or multiple reports that need to be sent at one time, we can consider sending mail automatically with Python at this time. The first step in using mailboxes Generally, when we use QQ mailbox, 1 ...

1. Data consolidation 1.1 import basic library import numpy as np import pandas as pd 1.2 loading data #Load all the data in the data folder and observe the relationship between them compared with the previous original data text_left_up = pd.read_csv("train-left-up.csv") text_left_down = pd.read_csv("train-left-down.csv") text_right_up = p ...