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1 LOF (Local Outlier Factor)
2 谿瑚襭


1 LOF (Local Outlier Factor) #

library(DMwR)
x <- df1$dau
y <- df1$used_cash
outlier.scores.y <- lofactor(y, k=5)
outlier.scores.x <- lofactor(x, k=5)
#plot(density(outlier.scores))
tmp <- data.frame(x, y, outlier.scores.y, outlier.scores.x)
tmp <- tmp[tmp$outlier.scores.x <= 2 & tmp$outlier.scores.y <= 2, ]
x <- tmp$x
y <- tmp$y

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