Table 4 RI and saaty’s relative importance scale17.

From: AHP and Geospatial technology-based assessment of groundwater potential zones in Natham taluk, Tamil nadu, India

N

1

2

3

4

5

6

7

8

9

Scale of Importance

Equal

Weakly

Moderate

Moderate plus

Strong

Strong plus

Very strong

Very, very strong

Extreme

RI

0

0

0.58

0.90

1.12

1.24

1.32

1.41

1.45