Django FAQ
django.db.migrations.exceptions.NodeNotFoundError: Migration auth.0013_user_following dependencies reference nonexistent parent node (‘users’, ‘0002_contact’)
按照 https://stackoverflow.com/questions/37 ...
Django Introduction Part3 - Database
Django uses an Object-Relational-Mapper (ORM) to map model definitions in the Django code to the data structure used by the underlying database. As we change our model definitions, Django tracks the c ...
Django Introduction Part4 - Admin
Customize how the admin form looks and works for Django.
Django Introduction Part6 - Generic list and detail views
In this article we’re going to complete the first version of the movie website by adding list and detail pages.
Movie list page
The movielist page will display a list of all the available movie recor ...
Django Introduction Part7 - Sessions framework
The movie website we created in the previous articles allows users to browse movies and directors. While the content is dynamically generated from the database, every user will essentially have access ...
Django Introduction Part 1
Introduction for Django
Django Introduction Part11 - Deploying Django to production
pip3 install uwsgi #gcc
123456789101112131415161718root@vultr:~# python3Python 3.6.5 (default, Apr 1 2018, 05:46:30)[GCC 7.3.0] on linuxType "help", "copyright", "credits" or "license" for more info ...
Django Introduction Part 2 - Models
Designing Django Models
Django Introduction Part 5 - Templates
Overview
After we defined our models and created some initial movie records to work with, it’s time to write the code that presents that information to users. The first thing we need to do is determi ...
Django Introduction Part9 - User authentication and permissions
Django provides an authentication and authorization (“permission”) system that allows you to verify user credentials and define what actions each user is allowed to perform. The framework includes bui ...
Django Introduction Part10 - Testing a Django web application
As websites grow they become harder to test manually. Not only is there more to test, but, as interactions between components become more complex, a small change in one area can impact other areas, so ...
Django Introduction Part9 - Working with forms
In this article, we're going to show you a few of the ways you can create and work with forms, and in particular, how the generic editing form views can significantly reduce the amount of work you need to do to create forms to manipulate your models.
R ANOVA
R的ANOVA
R Distributions
R的Distributions
R Dirty Data
R的脏数据处理
R Correlation
R的Corrlation
R Data Manipulation
R的基本数据处理
R Error Bar
R的标准差(std. deviation)以及标准误(std.error)用法
