Examples of model fits to the Hβ (left panel; plate = 1159, MJD = 52669, fiber = 470) and MgII (right panel; plate = 423, MJD = 51821, fiber = 250) spectral regions. The model components are colour-coded as follows; power law (orange), iron emission (violet), broad lines (blue), narrow lines (yellow), [OIII] shifted wings (red), and the total model (red). The panels beneath the spectra show the data/model ratio.