Multivariate outlier detection in exploration geochemistry

  title={Multivariate outlier detection in exploration geochemistry},
  author={Peter Filzmoser and Robert G. Garrett and Clemens Reimann},
  journal={Computers & Geosciences},
A new method for multivariate outlier detection able to distinguish between extreme values of a normal distribution and values originating from a different distribution (outliers) is presented. To facilitate visualising multivariate outliers spatially on a map, the multivariate outlier plot, is introduced. In this plot different symbols refer to a distance measure from the centre of the distribution, taking into account the shape of the distribution, and different colours are used to signify… CONTINUE READING