IQR to remove outlier
np.random.seed(33454)
stepframe = pd.DataFrame({'a': np.random.randint(1, 200, 20),
'b': np.random.randint(1, 200, 20),
'c': np.random.randint(1, 200, 20)})
stepframe[stepframe > 150] *= 10
print (stepframe)
Q1 = stepframe.quantile(0.25)
Q3 = stepframe.quantile(0.75)
IQR = Q3 - Q1
df = stepframe[~((stepframe < (Q1 - 1.5 * IQR)) |(stepframe > (Q3 + 1.5 * IQR))).any(axis=1)]
print (df)
a b c
1 109 50 124
3 137 60 1990
4 19 138 100
5 86 83 143
6 55 23 58
7 78 145 18
8 132 39 65
9 37 146 1970
13 67 148 1880
15 124 102 21
16 93 61 56
17 84 21 25
19 34 52 126