1. What is SAS?
  • SAS stands for Statistical Analysis System.
  • It is an integrated set of software products. 
  • It is the largest market share holder for advanced analystics.
2.. What is SAS used for?
     
     SAS is used for:
  1. Advanced Analytics
  2. Business Intelligence
  3. Data Management
  4. Predictive Analytics
  5. Time Series Analysis
  6. Data Mining
  7. Statistical Analysis
3. What is a SAS file?

      A SAS file is a specially structured file that is created, organized and maintained by SAS. Some examples of SAS                     files are:
  • SAS Data Sets
  • SAS catalogs
  • SAS/ACCESS descriptor files
  • Stored compiled Data Step programs
4. What are the two parts of a SAS Data Set?
  • The Descriptor Portion
  • Data Portion
SAS code that creates the Students data set from instream data.
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5. What is the Descriptor Portion of a SAS Data Set?
 
     The Descriptor Portion of a SAS Data Set contains 
     Data Set properties such as:
  • Data Set name
  • Data member type
  • Engine
  • Date created
  • Number of Observations
  • Number of variables
  • Variable data types
  • Variable names
  • Variable lengths
  • Variable formats and informats
  • Variable labels
6. What is the Data Portion of a SAS Data Set?

The Data Portion is a collection of the data values that are arranged in a rectangular table.