SAS (Statistical Analysis System) is a software suite developed by SAS Institute for advanced analytics, multivariate analyses, business intelligence, data management, and predictive analytics. SAS is a software suite that can mine, alter, manage and retrieve data from various sources and perform statistical analysis on it. SAS provides a graphical point-and-click user interface for non-technical users and more advanced options through the SAS programming language. Data should be in an Excel table format or SAS format to use Statistical Analysis System. SAS programs have a DATA step, which retrieves and manipulates data, usually creating a SAS data set, and a PROC step, which analyzes the data.
Each step consists of a series of statements. The DATA step has executable statements that result in the software taking action and declarative statements that provide instructions to read a data set or alter the data's appearance. The DATA step has two phases, compilation, and execution