55
a.
b.
c.
55
50
45
40
35
30
25
20
15
10
5
1
16
14
12
10
8
6
4
2
0
MAPE 146.424
MAD
1 .972
MSD
7 .650
Accuracy Measures
Index
Pb
2.38
Actual
Fits
Variable
Spatial Analysis Plot for Pb
Linear Trend Model
Pb = 2.619 + 0.0140×n
55
50
45
40
35
30
25
20
15
10
5
1
25
20
15
10
5
0
MAPE 170.458
MAD
1 .925
MSD
1 3.086
Accuracy Measures
n
Pb(N)
1.72
Actual
Fits
Variable
Spatial Analysis Plot for Pb(N)
Linear Trend Model
Pb(N) = 1.38 + 0.0406×n
45
40
35
30
25
20
15
10
5
1
20
15
10
5
0
MAPE 44.5745
MAD
1 .3879
MSD
8 .0796
Accuracy Measures
Index
Pb_1
2.29
Actual
Fits
Variable
Spatial Analysis Plot for Pb_1
Linear Trend Model
Pb_1 = 2.308 + 0.0335×n
Fig. 2.10 Spatial analysis plot of Pb (linear model). (a) 2015 Pb concentration data; (b) 2015 Pb
normalized concentration data; (c) 2010 Pb concentration data
2 Spatial Series and Multivariate Analysis in Assessing the Essential (Cu and Zn…