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smithdanielle/outlierRemoval.R

Last active February 27, 2017 12:20
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Outlier removal in R with MAD criterion: equations taken from [Leys et al (2013)](http://www.sciencedirect.com/science/article/pii/S0022103113000668).
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outlierRemoval.R
require(plyr)
require(dplyr)
data.outliersRemoved<-ddply(data, .(withinIV1, withinIV2), function(d){
limits.outliers = median(d$DV) + 2.5*c(-1, 1)*mad(d$DV))
d$DV[which(((d$DV - limits.outliers[1])*(limits.outliers[2] - d$DV)) <= 0)]<-NA
return(d)
})
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