| average | -- | average spectra. |
| barb | -- | arbitrarily broaden spectra. |
| bfilt | -- | band-pass filter. |
| genspec | -- | interpolate tabulated models |
| group | -- | group spectra. |
| gsm | -- | gaussian smooth. |
| move | -- | shift out velocities. |
| pbin | -- | phase bin. |
| rbroad | -- | apply rotational broadening. |
| red | -- | redden/deredden spectra. |
| sine | -- | sinusoidal velocity shift. |
| smear | -- | smear spectrum. |
| tbin | -- | rebin to template scale. |
| vbin | -- | rebin onto velocity scale. |
| wbin | -- | rebin onto wavelength scale. |