编程语言 SAS

Overview

SAS (Statistical Analysis System) is a software suite developed by the SAS Institute for advanced analytics, multivariate analysis, business intelligence, data management, and predictive analytics. It is widely used in industries such as finance, healthcare, marketing, and government for data analysis and decision-making.

SAS offers a variety of tools and functionalities for data manipulation, statistical analysis, and reporting. It uses a programming language called SAS programming language for writing scripts and performing data analysis tasks.

Syntax

SAS programming language uses a combination of data step, procedure step, and macro language for data manipulation and analysis. Here is an example of SAS code to read a dataset and calculate summary statistics:

/* Data step to read a dataset */
data mydata;
   set input_dataset;
run;

/* Procedure step to calculate summary statistics */
proc means data=mydata mean std min max;
   var variable_of_interest;
run;

Developer Toolchain

SAS provides a comprehensive set of developer tools for writing, debugging, and running SAS programs. Some of the key developer tools in SAS include:

  1. SAS Studio: Web-based development environment for writing and executing SAS programs.
  2. SAS Enterprise Guide: Integrated development environment (IDE) for SAS programming and data visualization.
  3. SAS Visual Analytics: Tool for creating interactive visualizations and dashboards from SAS data.
  4. SAS Viya: Cloud-based platform for running SAS analytics and machine learning models.

Developers can also use SAS programming language in conjunction with other tools such as SAS/IML (Interactive Matrix Language) for matrix-based computations and SAS Macro Language for automating repetitive tasks in SAS programs.