Data Analysis, Chemometrics, Spectroscopy, Raman Spectroscopy, Cosmic Rays.
Raman spectra Whitaker and Hayes propose to make advantage of the high intensity and small width of spikes and therefore use the difference between consecutive spectrum points ∇x(i) = x(i)-x(i-1) to calculate the z-scores, where x(1), …, x(n) are the values of a single Raman spectrum recorded at