UMASS Department of:
Biostatistics and Epidemiology

SAS:The Statistical Analysis System
Basics
Combo
Desc Stats
Advanced
Index
SASHome
Intro
Data In
Data Out
Pretty
Cleaning
Documentation
Environs

Summary

We describe the basics about SAS for use in a Research Environment. Contents includes:

Intro


Introduction to the Basics WEB pages:

  • What do you need to know.
  • What do you need to have.
  • What is the objective of the pages.
  • What are you likely to learn.


Data In

How to read data into the SAS program and create SAS data sets:

  • Reading data by typing it into the computer.
  • Locating a file to be read by SAS.
  • Reading a file that contains data already typed in the computer.
  • Reading data from a data set created by other software.
  • Describing the SAS data set.

Data Out

How to get data out of SAS:

  • Locating where to save a permanent SAS data set.
  • Creating a permanent SAS data set for future again.
  • Locating where to save a permanent ASCII data set.
  • Creating a permanent ASCII data set for future use.

Pretty

How to make a data set easy to understand, and produce pretty results:

  • Including descriptive names for variables as labels.
  • Including descriptive names for categories or values.
  • Using titles and footnotes.
  • Printing list in different orders and manners.
  • Creating output data sets for use in printing results.
  • Controlling each character and space that will be printed.


Cleaning

What techniques are helpful for checking and cleaning up mistakes in data:

  • Completing repetitive checking tasks without much typing.
  • Making sure that missing data is really treated as missing.
  • Range checking reported values.
  • Comparing responses that should be consistent.
  • Solving problems when characters were typed in instead of numbers
  • Identifying and eliminating accidential duplicate records.


Documentation

How to plan and implement documentation for data in a research study:

  • How to organized basic data sets.
  • How to plan data set links.
  • How to insure security and confidentiality.
  • Establishing standards.
  • How to make up names and organized SAS programs.
  • How to make up names for variables in the study.
  • How to make up names for files that contain data, and keep track of data that is used in reports.
  • How to keep track of the steps in data cleaning and variable creation.
  • How to summarize the documentation.


Environs

How to use the environment to manage a research project:

  • How to create buttons for special use in SAS.
  • How to take advantage of ICONs in SAS to simplify your life.
  • How to structure folders and files on the computer.
  • How to maintain adequate copies in case of a disaster.
  • How to use WEB pages to facilitate communication and access.



Last Update: 9/13/98
Comments: Ed Stanek
Email:
stanek@schoolph.umass.edu
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