ABSTRACT

SAS is a powerful computer package used for the analysis of data. It is made up of various modules that contain PROCEDURES to undertake specific tasks. The BASE module contains the basics of the SAS system, including data entry and manipulation and simple statistical operations. Purchasers of SAS can then decide what additional modules they require. Examples include the SAS/GRAPH module for graphics, the SAS/IML module (

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nteractive

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atrix

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anguage), and the SAS/STAT module for more advanced statistical operations. There is also a SAS/ASSIST module that allows the user to interact with the system directly, in a similar manner as to many other statistical software packages. It does not, however, use Microsoft® Windows® dialogue boxes that users might expect, and it is much less user friendly than other packages in this regard.