Outlier detection using R along with score -


i working on sample dataset find outliers using r.

i followed link , read discussion on outlier: http://cran.r-project.org/doc/contrib/zhao_r_and_data_mining.pdf

i have used dmwr, outliers packages find outliers. trying find out anomalous or outlier score each event.

using lofactor:

outlier_score <- lofactor(dataset, k=5) print(outlier_score) outliers <- order(outlier_score, decreasing=t)[1:5] print(outlers)

oultier_score gives score : nan nan nan inf nan

using outlier:

outlier_tf = outlier(dataset,logical=true) print(outlier_tf) find_outlier = which(outlier_tf==true,arr.ind=true) print(find_outlier)

find_outlier gives score as: false false false true false

is there function or package available give anomalous or outlier score each event in numerical form, easy find out event has highest score.


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