SAS® ANOVA 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 staff; infile 'raw-data-file'; input LastName $ 1-20 FirstName $ 21-30 JobTitle $ 36-43 Salary 54-59;run;

proc print data=staff;run;

proc means data=staff; class JobTitle; var Salary;run;

DATAStep

PROCSteps

SAS Programs

5

data staff; infile 'raw-data-file'; input LastName $ 1-20 FirstName $ 21-30 JobTitle $ 36-43 Salary 54-59;run;

proc print data=staff;

proc means data=staff; class JobTitle; var Salary;run;

Step Boundaries

6

Interactive windows enable you to interface with SAS.

SAS Windowing Environment

7

Open the SAS program example.sas. Submit the program and examine the results.

Exercises

8

Explain SAS syntax rules. State the naming conventions for SAS data sets

and variables. Create a SAS data set from a text dataset from your

textbook.

Objectives

9

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

data work.staff; infile 'raw-data-file'; input LastName $ 1-20 FirstName $ 21-30 JobTitle $ 36-43 Salary 54-59;run;

proc print data=work.staff;run;

proc means data=work.staff; class JobTitle; var Salary;run;

SAS Syntax Rules

10

Numeric values

Variable

names

Variable

values

LastName FirstName JobTitle Salary

TORRES JAN Pilot 50000LANGKAMM SARAH Mechanic 80000SMITH MICHAEL Mechanic 40000WAGSCHAL NADJA Pilot 77500TOERMOEN JOCHEN Pilot 65000

The data portion of a SAS data set is a rectangular table of character and/or numeric data values.

Character values

SAS Data Sets:

SAS Variable Names can be up to 32 characters long, must start with a letter or underscore. Subsequent characters can be letters, underscores, or numerals.

11

Accessing Data Sources

Data Entry

Raw Data File

Other Software File

DATA Step

SAS/ACCESS Software

SASData Set

FSEDITFSVIEW

Conversion Process

12

Data for this course is located on the

CDROM at back of book

and at

http://apps.csom.umn.edu/Nachtsheim/5th/

Data for this course

DATA one; INPUT Name $ Gender $ Runtime Age Weight Oxygen_Consumption Run_Pulse Rest_Pulse Maximum_Pulse Performance;DATALINES;Donna F 8.17 42 68.15 59.57 166 40 172 14Gracie F 8.63 38 81.87 60.06 170 48 186 13Luanne F 8.65 43 85.84 54.3 156 45 168 13Mimi F 8.92 50 70.87 54.63 146 48 155 11Chris M 8.95 49 81.42 49.16 180 44 185 11;

PROC PRINT DATA=one;RUN;

Creating a SAS data set: DATALINES statement.

14

The ANOVA.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

15

SAS Online Documentation

support.sas.com/documentation