Online Software Help Manual

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Residuals Spectra Plot

The spectral residuals matrix plot shows the spectral residual values for each wavelength of the calibration spectrum. Large residuals indicate a wavelength that does not contribute very well to the calibration model. Therefore the spectral residuals matrix plot can aid the user in selecting an optimal spectral range for a given calibration. By starting a calibration with the full spectral range and subsequently analyzing the matrix plot, one can eliminate less import wavelength from the calibration.

The dialog initially displays all relevant spectra. The configuration windows on the right side of the tab enables the user to customize the plot. The following picture shows an example residual spectra plot: