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This article mainly explains "what is the sas software for?". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the sas software for?"

Sas is a modular and integrated large-scale application software system, which can be used to collect, organize, analyze and express data. The functions of SAS system include data access, data storage and management, application development, graphics processing, data analysis, report compilation, operational research methods, econometrics and forecasting, and so on.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

If you want to do big data analysis:

If you want to do big data analysis through statistical software, you also need the following skills:

1. It is necessary to have the background of mathematical knowledge at the undergraduate or engineering master level of applied mathematics, statistics and quantitative economics.

2. Be proficient in at least one of the data analysis software such as SPSS, STATISTIC, Eviews, SAS, etc.

3. At least use Acess to develop database.

4. Master at least one mathematical software: matalab,mathmatics to build a new model.

5. Master at least one programming language

6, of course, knowledge in other application areas, such as marketing, economic statistics, etc., because this is the main application field of data analysis.

Let's walk into the SAS

SAS (Statistical Analysis System) is a modular and integrated large-scale application software system, which can be used to collect, organize, analyze and express data.

It consists of dozens of dedicated modules, including data access, data storage and management, application development, graphics processing, data analysis, report compilation, operational research methods, econometrics and forecasting, and so on.

Base SAS module is the core of SAS system. The other modules run in the environment provided by Base SAS. Users can choose the required modules to work with Base SAS to form a customized SAS system.

SAS system can basically be divided into four parts: SAS database part; SAS analysis core; SAS development and presentation tools; SAS support for distributed processing mode and data warehouse design.

SAS system mainly completes four major tasks with data as the center: data access; data management (the data management function of sas is not very excellent, but the data analysis ability is strong, so Microsoft products are often used to manage data, and then lead to sas data format. Pay attention to the matching use with other software); data presentation; data analysis.

SAS, it's great if you can use it.

SAS process

The foundation of SAS system is SAS language, which defines statistical analysis method as calculation process, which can be called directly during statistical analysis. Because SAS modules are composed of executable files, they are called SAS processes.

SAS program

A SAS program consists of a series of sentences that conform to the grammatical rules of the SAS language, just like a program written in any computer language. SAS language not only provides statements owned by general programming languages (such as loop control, conditional judgment, assignment, input and output, etc.), but also its rich probability functions, quantile functions, sample statistics functions and random number functions are unmatched by other languages.

The basic components of the SAS program are:

Several SAS statements form a data step (DATA step)

Several SAS statements form process steps (PROC steps)

Several DATA steps and several PROC steps form a complete SAS program.

Among them, the DATA step usually produces the SAS data set, while the PROC step processes the data in the SAS data set and outputs the results or produces a new data set.

Thank you for your reading, the above is the content of "what is the sas software used?" after the study of this article, I believe you have a deeper understanding of what the sas software is used for, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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