q_cut = df["col_name"].quantile(0.95)
trimmed = df[df["col_name"] < q_cut]or
std, mean = df["col_name"].std(), df["col_name"].mean()
lower = mean - 3*std
upper = mean + 3*std
trimmed = df[
df["col_name"] > lower &\
df["col_name"] < upper
]q_cut = df["col_name"].quantile(0.95)
trimmed = df[df["col_name"] < q_cut]or
std, mean = df["col_name"].std(), df["col_name"].mean()
lower = mean - 3*std
upper = mean + 3*std
trimmed = df[
df["col_name"] > lower &\
df["col_name"] < upper
]