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Regarding to PLSR calibration of concentrations from NIR spectra, Let say, there are measurements at 200 wavelengths, then how many concentration measurements is suitable mathematically ? Minimum number, maximum number, optimal number. Please assume there are no colineaity problem. For example, is e…

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When we built a PLSR model and use this model to make predictions, on the unscrambler we obtained RMSEP value which is basically Predicted Value-Reference Value. Can you please guide us as to how we should calculate the standard deviation or error limits for the RMSEP values?…

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