Data Analysis, Chemometrics, Spectroscopy, Raman Spectroscopy, Cosmic Rays.
this threshold is 3.5, as proposed as guideline by the American Society of Quality control as the basis of an outlier-labeling rule², while the authors of the publication used 6. In order to apply a threshold to exclude spikes, the absolute value of the Z-score must be taken: |z(i)| = |(x(i)-μ) /