Yesterday with R toss a simple time series data Arima automatic fitting and prediction. The process is not complicated, but it is not used much, in order to prevent forgetting, the author records.
Open R and install a package called "Forecast". Each time you turn on R, use theLibrary (' forecast ')Load the package.
Here I use the legendary airline model data. Load data, convert to TS formatAirdataAirts
The
The principle of what Baidu a bunch of search, do not understand, first learn to use this tool.ARIMA: All called autoregressive integral sliding average model (autoregressive integrated moving Average model, denoted Arima), is by Boxe (Box) and Jenkins (Jenkins) A famous time series prediction method was proposed in the early 70, so it is also called Box-jenkins
Reprinted from http://blog.sina.com.cn/s/blog_70f632090101bnd8.html#cmt_3111974
Today study Arima prediction time series.
The exponential smoothing method is very helpful for forecasting, and it has no requirement for the correlation between successive values in the time series. However, if you want to use the exponential smoothing method to calculate the prediction interval, then the predictive error must be irrelevant, and it must be a normal distri
First look at the following picture:
This is the monthly price of crude oil from 1986 to 2006. It can be seen that after 2001 years, crude oil prices have a significant climb, then it is not reasonable to assume that the mean is a fixed value (constant), that is, the second stationary model in this case is too applicable. This is why we have this talk today.
To deal with this non-stationary data (for example, the mean in the above image is not a cons
Training and Development Cooperation:
Tel: 18610086859
Email: hiheartfirst@gmail.com
QQ: 1740415547
QQ: 148325348
Guoshi studio is better for you!
View other parts:Overall description and Chapter index of this tutorial
PDF download link
Simple factory Mode Love at first sight
Simple factory Model Application Scenario example:
"Do you know the university rules ?", MM asked with dissatis
This article starting address: HTTP://98JY.NET/ARTICLE/24For more articles, please enter the portal----------------------------------------------The half Lambert illumination model was invented by valve in the production of "half-life" games to show objects in darker areas. In general, the light model improves the diffuse light on the surface of the object. Is Valve's example, the left hand side is the Lamb
Vue advanced tutorial: v-model, vuev-model
Share
Tutorial on the official Vue websitev-modelThe purpose of this article is to analyze it in detail and introduce Vue 2.2v-modelThen, let's talk about the Vue knowledge.
In Vue, there are many methods similar to Angular, mainly because Angular is the source of inspiration
The Model learning tutorial in the Yii Framework of PHP, yiimodel. The Model learning tutorial in the Yii Framework of PHP. the yiimodel is part of the MVC Model and is an object that represents business data, rules, and logic. The Model
How to get thinkphp to automatically complete the session assignment in the Model tutorial, Thinkphpsession
I believe that users who have used thinkphp know that the thinkphp model can accomplish many auxiliary functions, such as automatic verification, auto-completion, and so on, we need to get session value in the auto-completion in development today.
Then aut
The basic rules and usage of the Model in the ZendFramework tutorial, zendframework. The ZendFramework tutorial describes the basic rules and usage of the Model. This document describes the basic rules and usage of the Model in the zendframework
This article mainly introduces the learning tutorial of the Model in the PHP Yii Framework. the Yii Framework itself is huge, so the Model class also needs to be well written and maintained, if you need it, you can refer to the following model as part of the MVC model, which
A simple example of ZendFramework Model usage in the zendframework tutorial. A simple example of ZendFramework Model usage in the zendframework tutorial. This document describes the Model usage in the ZendFramework tutorial. For y
In this section, you will create a new Moviescontroller class and write code in this controller class to get the movie data and use the view template to display the data in the browser.
Build the application before you start the next step (make sure the application compiles without problems)
Right-click the Controller folder and create a new Moviescontroller controller. When the build succeeds, the following options appear. Set the following options:
· Controller name: moviescontroller. (This
/jqueryval")
In order to use this user authentication interface, the real benefit is that you do not need to modify any line of code in the Moviescontroller class or create.cshtml view. In the controller and view generated prior to this tutorial, the validation rules specified on the properties of the movie model class are automatically applicable.
You may have noticed the title and genre propertie
){ return typeof date == 'number' ? new Date(date) : date; } }},{});
We can use the following method:
Task.findAll({}, function(tasks){ $.each(tasks, function(){ console.log( "Year = "+this.createdAt.fullYear() ) })});
Crud event
When an instance is created, updated, or destroyed, the model publishes an event. You can use model. BIND (event, callback (EV, instance) to listen for created, up
TensorFlow Official Tutorial: The last layer of the retraining model to cope with the new classification
This article mainly includes the following content:
TensorFlow Official Tutorial re-training the final layer of the model to cope with the new classification flowers the inception
Related reading:
The ANGULARJS expression of the Angularjs introductory tutorial
ANGULARJS instructions for the ANGULARJS introductory tutorial
The ANGULARJS model (Ng-model) can bind values in HTML input fields to variables created by Angularjs in the tutorials of previous expressions and directives.
This article mainly introduces the basic rules and usage of the Model in the ZendFramework tutorial, and analyzes in detail the principles and usage skills of the Model in ZendFramework Based on the instance form, for more information about the basic Model rules and usage of the Zend Framework
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.