SAS® Regression Essentials

2

List the components of a SAS program. Open an existing SAS program and run it.

Objectives

3

DATA steps are typically used to create SAS data sets.

PROC steps are typically used to process SAS data sets (that is, generate reports and graphs, edit data, and sort data).

A SAS program is a sequence of steps that the user submits for execution.

RawData

RawData

DATAStep

DATAStep

ReportReport

SASDataSet

SASDataSet

PROCStep

PROCStep

SAS Programs

4

DATA one; INPUT Name $ Gender $ Runtime Age Weight ;

DATALINES;Donna F 8.17 42 68.15 Gracie F 8.63 38 81.87Luanne F 8.65 43 85.84Mimi F 8.92 50 70.87Chris M 8.95 49 81.42;RUN;

PROC PRINT DATA=one;RUN;

PROC REG DATA=one;MODEL Runtime=Weight;RUN;

DATAStep

PROCSteps

SAS Programs

5

Interactive windows enable you to interface with SAS.

SAS Windowing Environment

6

Open the SAS program “example.sas.”

Submit the program and examine the results.

Data for today's class located at

http://www.missouri.edu/~baconr/sas/reg

Exercises

7

Learn the two fundamental SAS syntax programming rules.

Learn to create a SAS dataset from text data. Locate the data for this course Write a Data Step to read a course data file.

Objectives

8

SAS statements have these characteristics: usually begin with an identifying keyword always end with a semicolon

data staff; input LastName $ FirstName $ JobTitle $ Salary;datalines;…insert text here…run;

proc print data=staff;run;

Fundamental SAS Syntax Rules

Example of a typical text data set.

Name Gender Runtime Age WeightDonna F 8.17 42 68.15 Gracie F 8.63 38 81.87Luanne F 8.65 43 85.84Mimi F 8.92 50 70.87Chris M 8.95 49 81.42

DATA one; INPUT Name $ Gender $ Runtime Age Weight;

DATALINES;Donna F 8.17 42 68.15 Gracie F 8.63 38 81.87Luanne F 8.65 43 85.84Mimi F 8.92 50 70.87Chris M 8.95 49 81.42;RUN;

PROC PRINT DATA=one;RUN;

Creating a SAS data set: The Data Step

11

Data for this course

Data set from kknm directory on my website

PERSON SBP AGE 1 144 39 2 220 47 3 138 45 4 145 47 5 162 65 6 142 46 7 170 67 8 124 42 9 158 67 . . .

13

Write a SAS program to read the data located in the “sbp.txt” text file.

http://www.missouri.edu/~baconr/sas/KKNM_DATA

Exercises

14

The reg.txt file contains several of the most common SAS procedures used your class.

During the remainder of this class, we will open that text file discuss the function of each of the procedures and demo it in SAS.

SAS Procedures