6 basis of Python data analysis -- batch data analysis
catalogue 7, Using correlation coefficient to judge the correlation of data 1. Using correlation coefficient to judge the correlation of data 2. Find the correlation between a single variable and other variables 8, Variance analysis was used to compare the differences of data 1. Variance analysUTF-8...
Posted by deed02392 on Wed, 02 Jun 2021 04:45:28 +0930
Python file and OS file / directory method
(this article is only for communication and learning) Role of documents The purpose of using the file: save the data on the disk, store some storage, so that the next time the program is executed, it can be used directly, without having to make a new copy, saving time and effort open() method PUTF-8...
Posted by gynophobia on Wed, 02 Jun 2021 06:39:54 +0930
A solution to crawling dangdangdang books with a case in Science
Scrapy framework brief introduction Five components of Scrapy Spiders: It is responsible for processing all the Responses, analyzing and extracting the data from them, obtaining the data needed by the Item field, submitting the URL to be followed up to the engine, and then entering the scheduleUTF-8...
Posted by mrherman on Wed, 02 Jun 2021 07:15:50 +0930
Python_ Data Science Database_ numpy
1. What is numpy A basic library for scientific computing in Python, focusing on numerical calculation, is also the basic library for most Python scientific computing libraries, which are mostly used to perform numerical operations on large and multidimensional arrays 2. numpy array creation UUTF-8...
Posted by nthomp on Wed, 02 Jun 2021 07:30:18 +0930
To be lazy, I started writing Android applications in Python
explain environmentdetailsremarksDevelopment environment systemwindowsCode generation environmentCompiler environment systemcentosAndroid apk compiler environmentprograming languagePython3.8.1Software dependencies (cetneo)vim make wget tar unzip zip bzip2 patch autoconfautomake libtool lld zliUTF-8...
Posted by oskargunn on Thu, 03 Jun 2021 07:29:41 +0930
Beginning Python Self-Study Notes#Functions.2 (Scope, etc.)
1. Function Scope That is, a text area, which is the scope space in which a variable or function looks for its name when it is accessed. 1.1. Global Variable-Local Variable [Local Variables] Global Variables defined within a function (including function participation) [Global Variable] Local VaUTF-8...
Posted by douceur on Fri, 04 Jun 2021 02:05:08 +0930
Record a task of target classification and get through the process
To do this thing is to pull through the process, so the dataset is remade, and only some categories are selected to complete the target classification task. Code address: Complete data set: https://pan.baidu.com/wap/init?surl=6f1nQchS-zBtzSWn9Guyyg Password: iksk After remake: 1, Project enviroUTF-8...
Posted by silvrfoxx on Fri, 04 Jun 2021 09:10:46 +0930
Handwritten Number Recognition Digit Recognizer
Handwritten Number Recognition Digit Recognizer In this Machine Learning project, I do a more classical handwritten number recognition project to consolidate my knowledge and lead you into the era of neural networks, which can expand on this classification task and convolute everything. If youUTF-8...
Posted by phatpappy on Sat, 05 Jun 2021 02:29:40 +0930
See how the kid fights the crawl to the end
The thing is like this: Chatting with my girlfriend this day, my girlfriend said she was tired and didn't want to do it? At this point, 10,000 ideas came to my mind, and the word "green" surrounded my head for a long time Just to ask, she came here and wanted to change jobs, emmm... I thought aUTF-8...
Posted by xec on Sat, 05 Jun 2021 02:49:12 +0930
python built in functions
python built in functions Python built-in functions are functions (public functions) in the python standard library. Now, let's talk about the built-in functions in python 1,abs() This function returns the absolute value of a number. a = 5 b = -10 print(abs(a)) #Output 3 print(abs(b)) #Output 5UTF-8...
Posted by sgt.wolfgang on Sat, 05 Jun 2021 04:24:58 +0930