solving power-law fit coefficient
validate the result of excel trend analysis. scatter plot ==> load OCTAVE in linux octave:1> x=load ./octx.dat x = 31.180 46.770 62.070 78.690 93.990 31.330 46.550 62.660 77.590 94.430 31.180 46.550 62.960 76.850 93.100 31.630 46.770 62.960 79.800 94.430 30.440 44.330 60.300 74.630 90.000 31.630 48.770 63.550 79.800 96.650 octave:2> y=load ./octy.dat y = 43.0000 16.5000 8.0000 6.0000 4.5000 20.0000 ...