Evaluation of Accounting Data of Water Company Based on Combination Model

Table 1

Learning sample of water resources flow (unit: million cubic meters).

Order number	Item	Stock increase	Stock decrease
1	Water of productive use	60	0
2	Domestic water	15	0
3	Environmental water	0	27
4	Import	7	0
5	Export	0	6.3
6	Purchase	5	0
7	Other departments	0.7	3