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Table 10 Showing FR values for geology classes

From: GIS-based gully erosion susceptibility modeling, adapting bivariate statistical method and AHP approach in Gombe town and environs Northeast Nigeria

  factor classes No. of points % of points class area % of class area Frequency ratio Relative frequency
Geology kerri kerri form 81,541.88 76.10 349,006 60.20 1.26 0.34
Gombe sandstone 12,326.1 11.50 111,965 19.31 0.59 0.16
Yolde formation 12,326.098 11.50 83,748 14.44 1.68 0.45
Pindiga formation 948.1614 0.88 35,002 6.03 0.14 0.03
sum 107,142.2 100 579,721 100 3.69 1