際際滷

際際滷Share a Scribd company logo
Whytoremove
Outliers
Copyright 息 Cognitior www.cognitior.com
Copyright 息 Cognitior www.cognitior.com
Whatisanoutlieranditsimpact?
Experience
Salary
Experience
Salary
Experience
Age
Age
4
23
24
24
26
26
60
Copyright 息 Cognitior www.cognitior.com
Howtofindtheoutliers?
Quartile 1
Quartile 2 or Median
Quartile 3
InterQuartileRange
IQRQ3Q1
Q1  1.5IQR
Q3 + 1.5IQR
Q3  Q1
26  23 = 3
Q1  1.5IQR
23  1.5*3 = 18.5
Q3 + 1.5IQR
26 + 1.5*3 = 30.5
Copyright 息 Cognitior www.cognitior.com
OutlierTreatment
 Remove the outliers
 Transform the data
 Square root transformation
 Cube root transformation
 Log transformation
ThankYou!!!
AnyQuestions?
support@cognitior.com
Copyright 息 Cognitior www.cognitior.com
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Outlier treatment