A simple test for outliers. This functions returns all extreme values (if any) found in the specified vector.

rp.outlier(x)

Arguments

x

a numeric vector of values

Value

vector of outlier values

References

Credit goes to PaulHurleyuk: https://stackoverflow.com/a/1444548/564164

  • Lund, R. E. 1975, "Tables for An Approximate Test for Outliers in Linear Models", Technometrics, vol. 17, no. 4, pp. 473-476.

  • Prescott, P. 1975, "An Approximate Test for Outliers in Linear Models", Technometrics, vol. 17, no. 1, pp. 129-132.

Examples

if (FALSE) { # \dontrun{
rp.outlier(mtcars$hp)
rp.outlier(c(rep(1,100), 200))
rp.outlier(c(rep(1,100), 200,201))
} # }