mean:
rewards (before) -0.467665 rewards (after) 3.969347 dtype: float64
median:
rewards (before) -1.216270 rewards (after) 4.689093 dtype: float64
mean:
rewards (before) -0.467665 rewards (after) 3.969347 dtype: float64
median:
rewards (before) -1.216270 rewards (after) 4.689093 dtype: float64