How to convert ndarray to series in python

pd.Series(my_ndarray)

no need to convert it first to a list then to series.

z_r.tolist()

                 

You can use this one:

my_list = map(lambda x: x[0], z_r)
ser = pd.Series(my_list)
In [86]:
ser
Out[86]:
0      0.009093
1      0.023903
2      0.029988

Actually, your question is how to convert to series ^^