65
55
50
45
40
35
30
25
20
15
10
5
1
120
100
80
60
40
20
0
MAPE
37.807
MAD
9 .176
MSD
2 56.451
Accuracy Measures
n
Zn
18.4
Actual
Fits
Variable
Spatial Analysis Plot for Zn
Linear Trend Model
Zn = 21.09 + 0.078×n
54
48
42
36
30
24
18
12
6
1
70
60
50
40
30
20
10
0
MAPE
57.561
MAD
8 .440
MSD
167.687
Accuracy Measures
n
Zn(N)
15.6
Actual
Fits
Variable
Spatial Analysis Plot for Zn(N)
Linear Trend Model
Zn(N) = 15.24 + 0.106×n
45
40
35
30
25
20
15
10
5
1
50
40
30
20
10
0
MAPE 111.218
MAD
6 .532
MSD
7 7.891
Accuracy Measures
n
Zn
13.9
Actual
Fits
Variable
Spatial Analysis Plot for Zn(2010)
Linear Trend Model
Zn(2010) = 10.47 + 0.1673×n
(a)
(b)
(c)
Fig. 2.18 Spatial analysis plot of Zn (linear model). (a) 2015 Zn concentration data; (b) 2015 Zn
normalized concentration data; (c) 2010 Zn concentration data
2 Spatial Series and Multivariate Analysis in Assessing the Essential (Cu and Zn…