Geospatial Analysis of Extreme Weather Events in Nigeria (1985–2015) Using Self-Organizing Maps

Table 4

Correlation matrix of the precipitation indices for the period 1985–2015 (significant at 5% level).

	Longitude	Latitude	R×5d	R1	R×1d	SDII
Longitude	1
Latitude	0.253906	1
R×5d	−0.13109	−0.72777	1
R1	−0.33055	−0.91357	0.749444	1
R×1d	−0.27179	−0.58645	0.753508	0.579652	1
SDII	−0.19219	−0.80291	0.838971	0.736548	0.714564	1