| estimate_template | Estimate the Template Spectrum |
| findabsorptionfeatures | Find Absorption Features in a Spectrum |
| fit3gauss | Fit Gaussians to Three Absorption Features |
| gauss1func | A Single Gaussian Absorption Feature |
| gauss2func | Two Gaussian Absorption Features |
| gauss3func | Three Gaussian Absorption Features |
| Gaussfit | Fit Gaussians to Absorption Features of a Normalized Spectrum |
| gaussfunc | Gaussian Function |
| HG1 | Evaluate the First-Degree Generalized Hermite-Gaussian Function |
| hgrv | Apply the Hermite-Gaussian Radial Velocity (HGRV) Estimation Method |
| observed_spec | Observed spectrum for the star 51 Pegasi (HD 217014) |
| spectra | Observed spectra for the star 51 Pegasi (HD 217014) |
| template | Estimated template spectrum for the star 51 Pegasi (HD 217014) |
| wave_match | Adjust the wavelength solution of a spectrum |