Spectrometric analysis
地域：
Wilmslow
摘要
A method of spectrometric analysis comprises obtaining one or more sample spectra for a sample. The one or more sample spectra are subjected to pre-processing and then multivariate and/or library based analysis so as to classify the sample. The pre-processing involves deisotoping the sample spectra.
說明書
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The above equation is a generalised Cauchy distribution which reduces to a standard Cauchy distribution for C=1 and becomes a Gaussian (normal) distribution as C→∞. The parameter Di controls the width of the distribution (in the Gaussian limit Di=σi is simply the standard deviation) while the global value C controls the size of the tails.
In one example, C is 3/2, which lies between Cauchy and Gaussian, so that the likelihood becomes:
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