52
55
50
45
40
35
30
25
20
15
10
5
1
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
MAPE 28.1503
MAD
2 .9096
MSD
1 3.3696
Accuracy Measures
n
Cu
10
Actual
Fits
Variable
Spatial Analysis Plot for Cu
Linear Trend Model
Cu = 10.51 + 0.0117×n
54
48
42
36
30
24
18
12
6
1
40
30
20
10
0
MAPE 59.3868
MAD
4 .3627
MSD
4 8.8996
Accuracy Measures
n
Cu(N)
7.21
Actual
Fits
Variable
Spatial Analysis Plot for Cu(N)
Linear Trend Model
Cu(N) = 7.48 + 0.0618×n
45
40
35
30
25
20
15
10
5
1
16
14
12
10
8
6
4
2
MAPE 30.6433
MAD
1 .5871
MSD
5 .1946
Accuracy Measures
n
Cu
5.62
Actual
Fits
Variable
Spatial Analysis Plot for Cu(2010)
Linear Trend Model
Cu(2010) = 5.171 + 0.0360×n
(a)
(b)
(c)
Fig. 2.8 Spatial analysis plot of Cu (linear model). (a) 2015 Cu concentration data; (b) 2015 Cu
normalized concentration data; (c) 2010 Cu concentration data
S. Allajbeu et al.