a   b   i  x          y          x_ewma_smooth x_ewma_rough y_ewma_smooth y_ewma_rough
pan pan 1  0.34679014 0.72680286 0.34679014    0.34679014   0.72680286    0.72680286
eks pan 2  0.75867996 0.52215111 0.75867996    0.75867996   0.52215111    0.52215111
wye wye 3  0.20460331 0.33831853 0.20460331    0.20460331   0.33831853    0.33831853
eks wye 4  0.38139939 0.13418874 0.72095191    0.41912745   0.48335487    0.17298498
wye pan 5  0.57328892 0.86362447 0.24147187    0.53642036   0.39084912    0.81109388
zee pan 6  0.52712616 0.49322129 0.52712616    0.52712616   0.49322129    0.49322129
eks zee 7  0.61178406 0.18788492 0.71003512    0.59251840   0.45380788    0.18639493
zee wye 8  0.59855401 0.97618139 0.53426894    0.59141122   0.54151730    0.92788538
hat wye 9  0.03144188 0.74955076 0.03144188    0.03144188   0.74955076    0.74955076
pan wye 10 0.50262601 0.95261836 0.36237373    0.48704242   0.74938441    0.93003681
