[R] How to remove multiple outliers

aajit75 aajit75 at yahoo.co.in
Thu Oct 20 14:11:59 CEST 2011


Hi All,

I am working on the dataset in which some of the variables have more than
one observations with  outliers . 

I am using below mentioned sample script 

library(outliers)
x1 <- c(10, 10, 11, 12, 13, 14, 14, 10, 11, 13, 12, 13, 10, 19, 18, 17,
10099, 10099, 10098)
outlier_tf1 = outlier(x1,logical=TRUE)
find_outlier1 = which(outlier_tf1==TRUE, arr.ind=TRUE)
beh_input_ro1 = x1[-find_outlier1]

It removes the outliers which are extrme and not all. In this example it
removes only  10099, 10099 and not 10098.

Thanks for the help in advance.
-Ajit


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