a   b   i x                   y                   z
pan pan 1 0.3467901443380824  0.7268028627434533  0.5888889066182877
eks pan 2 0.7586799647899636  0.5221511083334797  0.871022367560078
wye wye 3 0.20460330576630303 0.33831852551664776 0.45233096927615185
eks wye 4 0.38139939387114097 0.13418874328430463 0.6175754155333104
