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Biology and Medical
Comparing Near-Infrared Spectra: What Stat Method?
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[QUOTE="Ygggdrasil, post: 6542374, member: 124113"] In your data, you expect to see a linear correlation between the spectra of the two compounds. For wavelengths, where you see high absorbance for the first compound, you expect to see high absorbance for the second compound and vice versa for wavelengths were you see low absorbance for the first compound. The absorbance is not linearly correlated with wavelength, but that doesn't matter as you're measuring the correlation between the absorbance of two compounds. (Nevertheless, whenever calculating the correlation coefficient, it's always helpful to make a scatterplot of the data to see whether the relationship is linear or more complicated). [/QUOTE]
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Comparing Near-Infrared Spectra: What Stat Method?
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