Phosphorus and the Kawartha Lakes - Lakefield Herald
Phosphorus and the Kawartha Lakes - Lakefield Herald
Phosphorus and the Kawartha Lakes - Lakefield Herald
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Regression Model<br />
Whole Model<br />
Actual by Predicted Plot<br />
Average P (ug/l) Actual<br />
22.5<br />
20<br />
17.5<br />
15<br />
12.5<br />
10<br />
7.5<br />
7.5 10.0 12.5 15.0 17.5 20.0 22.5<br />
Average P (ug/l) Predicted P=0.0260<br />
RSq=0.90 RMSE=2.1037<br />
Summary of Fit<br />
RSquare<br />
0.903793<br />
RSquare Adj<br />
0.807586<br />
Root Mean Square Error<br />
2.103658<br />
Mean of Response<br />
14.83778<br />
Observations (or Sum Wgts)<br />
9<br />
Effect Tests<br />
Source<br />
Mean Depth<br />
freshwater marsh<br />
pasture <strong>and</strong> ab<strong>and</strong>oned fields<br />
cropl<strong>and</strong><br />
Nparm<br />
1<br />
1<br />
1<br />
1<br />
DF<br />
1<br />
1<br />
1<br />
1<br />
Sum of Squares<br />
4.3919304<br />
2.2437244<br />
1.4656076<br />
1.3184873<br />
Residual by Predicted Plot<br />
4<br />
Average P (ug/l) Residual<br />
3<br />
2<br />
1<br />
0<br />
-1<br />
-2<br />
-3<br />
7.5 10.0 12.5 15.0 17.5 20.0 22.5<br />
Average P (ug/l) Predicted<br />
F Ratio<br />
0.9924<br />
0.5070<br />
0.3312<br />
0.2979<br />
Prob > F<br />
0.3755<br />
0.5158<br />
0.5958<br />
0.6142<br />
Analysis of Variance<br />
Source<br />
Model<br />
Error<br />
C. Total<br />
DF<br />
Sum of Squares<br />
4<br />
166.29264<br />
4<br />
17.70151<br />
8<br />
183.99416<br />
Mean Square<br />
41.5732<br />
4.4254<br />
F Ratio<br />
9.3943<br />
Prob > F<br />
0.0260<br />
Parameter Estimates<br />
Term<br />
Intercept<br />
Mean Depth<br />
freshwater marsh<br />
pasture <strong>and</strong> ab<strong>and</strong>oned fields<br />
cropl<strong>and</strong><br />
Estimate<br />
12.196116<br />
-0.628681<br />
9155.3314<br />
137.29955<br />
-184.2219<br />
Std Error<br />
3.719381<br />
0.631071<br />
12857.74<br />
238.5808<br />
337.5036<br />
t Ratio<br />
3.28<br />
-1.00<br />
0.71<br />
0.58<br />
-0.55<br />
Prob>|t|<br />
0.0305<br />
0.3755<br />
0.5158<br />
0.5958<br />
0.6142<br />
Mean Depth<br />
Leverage Plot<br />
Average P (ug/l) Leverage Residuals<br />
22.5<br />
20.0<br />
17.5<br />
15.0<br />
12.5<br />
10.0<br />
7.5<br />
1 2 3 4 5 6 7<br />
Mean Depth Leverage, P=0.3755<br />
freshwater marsh<br />
Leverage Plot<br />
Average P (ug/l) Leverage Residuals<br />
22.5<br />
20.0<br />
17.5<br />
15.0<br />
12.5<br />
10.0<br />
7.5<br />
.000 .001 .002 .003 .004<br />
freshwater marsh Leverage, P=0.5158<br />
pasture <strong>and</strong> ab<strong>and</strong>oned fields<br />
Leverage Plot<br />
Average P (ug/l) Leverage Residuals<br />
22.5<br />
20.0<br />
17.5<br />
15.0<br />
12.5<br />
10.0<br />
7.5<br />
.000 .025 .050 .075 .100<br />
pasture <strong>and</strong> ab<strong>and</strong>oned fields Leverage,<br />
P=0.5958<br />
cropl<strong>and</strong><br />
Leverage Plot<br />
Average P (ug/l) Leverage Residuals<br />
22.5<br />
20.0<br />
17.5<br />
15.0<br />
12.5<br />
10.0<br />
7.5<br />
.00 .05 .10 .15 .20<br />
cropl<strong>and</strong> Leverage, P=0.6142<br />
49
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