94
P. Lazo et al.
45
40
35
30
25
20
15
10
5
1
3.0
2.5
2.0
1.5
1.0
0.5
0.0
MAPE 35.9485
MAD
0.2684
MSD
0.1948
Accuracy Measures
n
F3
Actual
Fits
Variable
Spatial Analysis Plot for F3
Linear Trend Model
F3 = 0.658 + 0.00398×n
Fig. 8.2 Spatial analysis plot and GIS map of FL3 data (Sb, Zn, Hg, Pb, Cd, Cu and Ca). Outlier
sites: St. 14, 24, 29, 31, 41
45
40
35
30
25
20
15
10
5
1
12
10
8
6
4
2
0
MAPE 98.4033
MAD
0.9637
MSD
2.8108
Accuracy Measures
n
F4
Actual
Fits
Variable
Spatial Analysis Plot for F4
Linear Trend Model
F4= 0.294 + 0.0472×n
Fig. 8.3 Spatial analysis plot and GIS map of FL4 data (Ni, Cr, Mg and Co). Outlier sites: St. 14,
24, 41, 42, 47