Table 4 Factor classification results.

From: Evaluation and promotion strategy of resilience of urban water supply system under flood and drought disasters

Factor no

Indicators

Amount

1

C2, C7, C8, C9, C13, C17, C18, C19, C20

9

2

C3, C14, C21, C22

4

3

C4, C5, C10

3

4

C15, C23

2

5

C26, C27

2

6

C24, C25

2

7

C1, C16

2

8

C6, C11

2

9

C12

1