Introduction to Python Data Analysis and Practical Learning Resources

pandas is a software package of Python language. When we use Python language for machine learning programming, it is a very common basic programming library. This article is an introduction to it. pandas provides a fast, flexible and expressive data structure, which aims to make the work of "relation" or "mark" data simple ...

Added by gin on Sat, 12 Oct 2019 20:23:32 +0300

How does git submodules accommodate Baichuan

sumodules git submodules test 1. Use scenarios Submodules have a situation that we often encounter: a project in one job needs to include and use another project. Maybe it's a third-party library, or a library you developed independently for multiple parent projects.Now here's the problem: You want to think of them as two separate projects, and ...

Added by ow-phil on Wed, 31 Jul 2019 14:22:07 +0300

Notes on Wechat Payment

1. Development preparation 1.Registered Wechat Developer Account 2.Official Documents of Wechat 3.Official Demo 4. Registered Wechat Business Number Above 1 and 2 see the official registration process to ok, in the open platform to register your current development of the App application, where you need the App application signature ...

Added by nickholt1972 on Sun, 07 Jul 2019 04:58:48 +0300

Redis Cluster Building Instructions

Redis Cluster Building Instructions Using two virtual machines to simulate 6 nodes and one virtual machine to create 3 master and 3 salve environments Redis version: redis-3.2.4 linux version: CentOS 6.5 (10.60.44.76), CentOS 7.0 (10.60.44.105) 1. Download the redis installation package Installation package is attached, redis-3.2.4.tar.gz 2. ...

Added by mazman on Fri, 21 Jun 2019 02:10:19 +0300

Redis Cluster Configuration and Installation

Introduction to Redis Cluster: The Redis cluster is a distributed implementation with the following goals, sorted by design importance: * High performance and linear scalability of up to 1000 nodes.There is no proxy, asynchronous replication is used, and there is no merge when assigning values. *Acceptable write security: When a clien ...

Added by smilley654 on Sat, 15 Jun 2019 21:12:27 +0300

Vim Skills Training Course (12) - Vim's scripting language support

Vim scripting language support At the beginning of this section, we are officially exposed to vimscript, an ancient scripting language. First of all, there are many extensions supported by vim, such as python, Python 3, ruby, lua, TCL and other common scripting languages. It can support scripts embedded in. vimrc or execute files in scripting l ...

Added by objNoob on Thu, 13 Jun 2019 23:08:10 +0300

Logstash in more detail - filter module

The second component of the Logstash three components is also the most complex and painful component of the real Logstash tool, and of course, the most useful one. 1. The grok plug-in grok plug-in has a very powerful function, it can match all the data, but its performance and the depletion of resources are also criticized. filter{ grok{ ...

Added by mb81 on Sat, 08 Jun 2019 20:50:32 +0300

Redis Initial Practice

First, let's look at Redis 1. Introduction to Redis Redis is completely open source, free of charge, complies with BSD protocol, and is a high-performance key-value database. Redis and other key - value caching products have three features: Redis supports data persistence, can save data in memory in disk, and can be loaded again when re ...

Added by andrewburgess on Sat, 08 Jun 2019 05:49:13 +0300

LESS Mini Trial Knife

Why Choose less CSS code development and maintenance are more difficult, especially in CSS of various sizes and colors, see more absolute vomiting. So there are CSS preprocessing languages which are easy to develop and maintain and manage, and they can be compiled to generate CSS. As a back-end Javer, there are roughly three CSS preprocessin ...

Added by kee2ka4 on Sat, 25 May 2019 02:48:50 +0300

Implementation of message queue using Redis PUSH-POP mechanism

Readers can access this article on their personal website: Huanggwenwei - Interline: Using Redis PUSH-POP mechanism to achieve message queuing background In order to improve management efficiency, optimize work flow and team organization structure, more and more traditional industries have introduced the concept of SASS to standardize and upgra ...

Added by fingerprn on Tue, 21 May 2019 01:51:59 +0300