Quote:
Originally Posted by SJS
I see no difference (as good as know of you want to nit-pick  ) between PI and OI. Am I missing something here
Code:
PI OI Diff
0.6 0.6 0
0.76 0.76 0
0.7 0.7 0
0.87 0.87 0
0.91 0.91 0
0.96 0.96 0
0.96 0.96 0
1.03 1.04 -0.01
1.05 1.05 0
0.71 0.72 -0.01
0.85 0.85 0
0.69 0.7 -0.01
0.85 0.86 -0.01
0.82 0.82 0
0.98 0.98 0
0.89 0.89 0
0.97 0.97 0
0.91 0.91 0
0.89 0.89 0
1.01 1.02 -0.01
1.09 1.09 0
1.05 1.05 0
1.01 1.01 0
0.56 0.6 -0.04
0.64 0.7 -0.06
1.04 1.05 -0.01
0.72 0.72 0
0.87 0.87 0
0.83 0.83 0
0.84 0.84 0
0.94 0.94 0
1.05 1.05 0
1.38 1.39 -0.01
1.13 1.13 0
1.13 1.13 0
0.79 0.79 0
0.92 0.93 -0.01
1.13 1.13 0
0.64 0.66 -0.02
0.83 0.83 0
1.21 1.22 -0.01
1.07 1.09 -0.02
1.06 1.06 0
1.04 1.05 -0.01
1.22 1.22 0
1.01 1.01 0
0.87 0.87 0
0.88 0.88 0
0.77 0.77 0
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Actually it was used to counter differences between relative strengths of batting an bowling. If batting and bowling are both 0.7, PI and OI both are 0.7.
But, instead if batting was 1.2 and bowling was 0.4, then OI will be 0.8, which will even out deficiencies. and PI will be 0.70, which caused addition of deficiencies.
(X + Y) / 2 >= sqrt(XY), when X > 0 and Y > 0