Forecasting Methods in Various Applications Using Algorithm of Estimation Regression Models and Converting Data Sets into Markov Model

Table 5

Comparison between the values of estimated water elements and their actual data set.

Water properties	Coefficient of variation (%)	Average	Standard deviation	Homogeneity value	Mann–Whitney test p value
Temp (1)	4.92	21.5333	1.058605	0.987	0.820
Temp (2)	4.93	21.5307	1.061584
pH (1)	6.36	8.3523	0.531492	0.998	0.970
pH (2)	6.36	8.3523	0.531211
ORP (1)	−375.2	−30.01	112.5976	0.999	0.880
ORP (2)	−373.98	−30.1219	112.6491
DO (1)	37.87	8.82	3.340356	0.999	0.970
DO (2)	37.91	8.843	3.352044
EC (1)	23.24	53239.47	12373.02	0.995	0.970
EC (2)	23.28	53113.72	12363.54
RES (1)	23.14	19.9	4.605552	1	1
RES (2)	23.14	19.9	4.605552
TDS (1)	18.44	36320.47	6697.048	1	0.910
TDS (2)	18.44	36320.51	6697.063
SAL (1)	24.33	35.5293	8.645166	0.998	0.880
SAL (2)	24.31	35.5388	8.639253
SSG (1)	26.56	25.54	6.784328	0.990	0.880
SSG (2)	26.58	25.4874	6.775422
TN (1)	51.06	77.14	39.39092	0.997	0.970
TN (2)	51.1	77.207	39.45543
COD (1)	74.4	1256.733	934.9629	1	0.940
COD (2)	74.39	1256.765	934.9632
PO4 (1)	97.02	0.0778	0.07548	0.997	0.940
PO4 (2)	97.37	0.0774	0.075365
cd (1)	15.32	0.0352	0.005391	1	1
cd (2)	15.32	0.0352	0.005391
cu (1)	9.15	0.0745	0.006819	1	1
cu (2)	9.15	0.0745	0.006819
zn (1)	23.48	0.0383	0.008994	1	1
zn (2)	23.48	0.0383	0.008994
pb (1)	24.02	0.0078	0.001874	0.971	0.811
pb (2)	24.53	0.0077	0.001889
fe (1)	37.56	0.6518	0.244793	0.998	0.880
fe (2)	37.61	0.6514	0.244983

indicates the ( value) for each of homogeneity test and Mann–Whitney test.