outliers
From spatialEco v1.3-2
by Jeffrey S Evans
Outliers
Identify outliers using modified Z-score
Usage
outliers(x, s = 1.4826)
Arguments
- x
A numeric vector
- s
Scaling factor for mad statistic
Value
value for the modified Z-score
References
Iglewicz, B. & D.C. Hoaglin (1993) How to Detect and Handle Outliers, American Society for Quality Control, Milwaukee, WI.
Examples
# NOT RUN {
# Create data with 3 outliers
x <- seq(0.1, 5, length=100)
x[98:100] <- c(100, 55, 250)
# Calculate Z score
Z <- outliers(x)
# Show number of extreme outliers using Z-score
length(Z[Z > 9.9])
# Remove extreme outliers
x <- x[-which(Z > 9.9)]
# }
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