Documentation Example 4 for PROC DISCRIM
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: DISCEX4 */
/* TITLE: Documentation Example 4 for PROC DISCRIM */
/* PRODUCT: SAS/STAT */
/* SYSTEM: ALL */
/* KEYS: discriminant analysis */
/* PROCS: DISCRIM */
/* DATA: */
/* */
/* SUPPORT: saswfk UPDATE: July 25, 2010 */
/* REF: PROC DISCRIM, EXAMPLE 4 */
/* MISC: */
/* */
/****************************************************************/
title 'Discriminant Analysis of Remote Sensing Data on Five Crops';
data crops;
input Crop $ 1-10 x1-x4 xvalues $ 11-21;
datalines;
Corn 16 27 31 33
Corn 15 23 30 30
Corn 16 27 27 26
Corn 18 20 25 23
Corn 15 15 31 32
Corn 15 32 32 15
Corn 12 15 16 73
Soybeans 20 23 23 25
Soybeans 24 24 25 32
Soybeans 21 25 23 24
Soybeans 27 45 24 12
Soybeans 12 13 15 42
Soybeans 22 32 31 43
Cotton 31 32 33 34
Cotton 29 24 26 28
Cotton 34 32 28 45
Cotton 26 25 23 24
Cotton 53 48 75 26
Cotton 34 35 25 78
Sugarbeets22 23 25 42
Sugarbeets25 25 24 26
Sugarbeets34 25 16 52
Sugarbeets54 23 21 54
Sugarbeets25 43 32 15
Sugarbeets26 54 2 54
Clover 12 45 32 54
Clover 24 58 25 34
Clover 87 54 61 21
Clover 51 31 31 16
Clover 96 48 54 62
Clover 31 31 11 11
Clover 56 13 13 71
Clover 32 13 27 32
Clover 36 26 54 32
Clover 53 08 06 54
Clover 32 32 62 16
;
title2 'Using the Linear Discriminant Function';
proc discrim data=crops outstat=cropstat method=normal pool=yes
list crossvalidate;
class Crop;
priors prop;
id xvalues;
var x1-x4;
run;
data test;
input Crop $ 1-10 x1-x4 xvalues $ 11-21;
datalines;
Corn 16 27 31 33
Soybeans 21 25 23 24
Cotton 29 24 26 28
Sugarbeets54 23 21 54
Clover 32 32 62 16
;
title2 'Classification of Test Data';
proc discrim data=cropstat testdata=test testout=tout testlist;
class Crop;
testid xvalues;
var x1-x4;
run;
proc print data=tout;
title 'Discriminant Analysis of Remote Sensing Data on Five Crops';
title2 'Output Classification Results of Test Data';
run;
title2 'Using Quadratic Discriminant Function';
proc discrim data=crops method=normal pool=no crossvalidate;
class Crop;
priors prop;
id xvalues;
var x1-x4;
run;