Extreme values: detection and accommodation
Background
Extreme values and outliers
Tests of discordancy
Tests of discordancy
Test metrics
Accommodating outliers
Robust estimators
Desired properties of estimators
R demonstration
Identifying extreme values
Hourly values
Daily values: PM
\(_{10}\)
example
Tests of discordancy
Accommodation
Interpretation
References
Background
Motivation
In hourly concentrations plotted below for 2013 in Lausanne (LAU) and Zurich (ZUE), we can identify several extreme values. We will particularly focus on the PM
\(_{10}\)
and EC concentrations in Zurich and examine them further.