Getting Started Example for PROC ANOVA
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: ANOVAIN1 */
/* TITLE: Getting Started Example for PROC ANOVA */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: analysis of variance, balanced data, design */
/* PROCS: ANOVA */
/* DATA: */
/* */
/* SUPPORT: sasrdt */
/* REF: PROC ANOVA, INTRODUCTORY EXAMPLE 1. */
/* MISC: */
/****************************************************************/
/* One-Way Layout with Means Comparisons -----------------------*/
title1 'Nitrogen Content of Red Clover Plants';
data Clover;
input Strain $ Nitrogen @@;
datalines;
3DOK1 19.4 3DOK1 32.6 3DOK1 27.0 3DOK1 32.1 3DOK1 33.0
3DOK5 17.7 3DOK5 24.8 3DOK5 27.9 3DOK5 25.2 3DOK5 24.3
3DOK4 17.0 3DOK4 19.4 3DOK4 9.1 3DOK4 11.9 3DOK4 15.8
3DOK7 20.7 3DOK7 21.0 3DOK7 20.5 3DOK7 18.8 3DOK7 18.6
3DOK13 14.3 3DOK13 14.4 3DOK13 11.8 3DOK13 11.6 3DOK13 14.2
COMPOS 17.3 COMPOS 19.4 COMPOS 19.1 COMPOS 16.9 COMPOS 20.8
;
/* Analysis where Strain: Treatment Levels, Nitrogen: Response -*/
proc anova data = Clover;
class strain;
model Nitrogen = Strain;
run;
/* Request Means of Strain Levels with Tukey's Studentized Range*/
means strain / tukey;
run;
/* Visualize Nitrogen Content Distribution for Each Treatment --*/
ods graphics on;
proc anova data = Clover;
class strain;
model Nitrogen = Strain;
run;
ods graphics off;