Revise test data for data prep result
Revise test data for data prep result

the cython implementation gives slightly different results

the maximum differences are indicated in the 4th column below

BAinc_Aw        9.760260e-02  1.464039e-01  1.952052e-01
BAinc_Pl        1.147629e-01  1.721443e-01  2.295258e-01

tesera/pygypsy,tesera/pygypsy