stats.zscore(a, axis=0, ddof=0) in this code, Can you explain the parameter of axis?
It is not different from NumPy axis.
axis : int or "None", optional If axis is equal to None, the array is first raveled. If axis is an integer, this is the axis over which to operate. Default is 0.
Here's link https://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.stats.mstats.zscore.html