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Example E4 SAS Program goptions^ hsize=
7.5^ in^ vsize=
5.5^ in^ rotate=landscape
targetdevice=pscolor;
data^ peanuts;input^ fertilizer $ yield height;label^ fertilizer='Fertilizer'
yield='Yield'
height='Height';
datalines;C^ 12.2^45 C^ 12.4^52 C^ 11.9^42 C^ 11.3^35 C^ 11.8^40 C^ 12.1^48 C^ 13.1^60 C^ 12.7^61 C^ 12.4^50 C^ 11.4^33 S^ 16.6^63 S^ 15.8^50 S^ 16.5^63 S^ 15.0^33 S^ 15.4^38 S^ 15.6^45 S^ 15.8^50 S^ 15.8^48 S^ 16.0^50 S^ 15.8^49 F^ 9.5^52 F^ 9.5^54 F^ 9.6^58 F^ 8.8^45 F^ 9.5^57 F^ 9.8^62 F^ 9.1^52 F^ 10.3^67 F^ 9.5^55 F^ 8.5^40 ; run ; proc^ print^
data=peanuts;
run ;
proc^ glm^ data=peanuts
order=data;
class^ fertilizer;model^ yield = fertilizer height;lsmeans^ fertilizer/stderr
cl^ pdiff;
contrast^ 'Modified vs. Standard'
fertilizer
^1 - .5^ - .5 ;
contrast^ 'Slow-release vs. Fast-release'
fertilizer
^0 1 -^1 ;
title^ 'Covariance Analysis of Peanut Fertilizer Data'; run ; symbol1^ v="C"
cv=red^ f=centb
h=^ 1.5^ i=none;
symbol2^ v="F"
cv=steelblue
f=centb^ h=
1.5^ i=none;
symbol3^ v="S"
cv=magenta
f=centb^ h=
1.5^ i=none;
axis1^ c=dapk
label=(c=blueviolet
h= 1.5^ a=^90
f=centb^ 'Yield');
axis2^ c=dapk
label=(c=blueviolet
h= 1.5^ f=centb
'Height');
proc^ gplot^
data=peanuts;
plot^ yield*height=fertilizer/vaxis=axis
haxis=axis2;
title^ c=darkcyan h=
2 'Covariance Analysis of Peanut Fertilizer Data';
run ;
SAS Output
Covariance^ Analysis
of^ Peanut^ Fertilizer
Data^
Obs^ fertilizer
yield^ height 1 C 12.2^452 C 12.4^523 C 11.9^424 C 11.3^355 C 11.8^406 C 12.1^487 C 13.1^608 C 12.7^619 C 12.4^50 10 C^
11.4^33
11 S^
16.6^63
12 S^
15.8^50
13 S^
16.5^63
14 S^
15.0^33
15 S^
15.4^38
16 S^
15.6^45
17 S^
15.8^50
18 S^
15.8^48
19 S^
16.0^50
20 S^
15.8^49
21 F^
9.5^52
22 F^
9.5^54
23 F^
9.6^58
24 F^
8.8^45
25 F^
9.5^57
26 F^
9.8^62
27 F^
9.1^52
28 F^
10.3^67
29 F^
9.5^55
30 F^
8.5^40
Covariance^ Analysis
of^ Peanut^ Fertilizer
Data^
The^ GLM^ ProcedureClass^ Level^ InformationClass Levels^
Values fertilizer^
3 C^ S^ F
Number^ of^ Observations
Read^30 Number^ of^ Observations
Used^30 Covariance^ Analysis
of^ Peanut^ Fertilizer
Data^
The^ GLM^ Procedure Dependent^ Variable:
yield^ Yield
Sum^ of Source^
DF^ Squares
Mean^ Square
F^ Value^ Pr
>^ F
Model^
4447.85^ <.
Error^
Corrected^ Total^
29 214.7936667R-Square Coeff^ Var^
Root^ MSE^ yield
Mean 0.998055^ 1.
0.^
Source^
DF^ Type^ I^
SS^ Mean^ Square
F^ Value^ Pr
>^ F
fertilizer^
6463.47^ <.
height^
416.62^ <.
Source^
DF^ Type^ III^
SS^ Mean^ Square
F^ Value^ Pr
>^ F
fertilizer^
6657.08^ <.
height^
416.62^ <.
Covariance^ Analysis
of^ Peanut^ Fertilizer
Data^
The^ GLM^ Procedure Dependent^ Variable:
yield^ YieldContrast
DF^ Contrast^
SS^ Mean^ Square
F^ Value^ Pr
>^ F
Modified^ vs.^ Standard
17.62^ 0.
Slow-release^ vs.
Fast-release^
13175.4^ <.
F e r t i l i z e r^
C^ F
S
1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0^98 3 0^
4 0^
5 0^
6 0^
