Fork of the original spextractor (https://github.com/astrobarn/spextractor).
This code uses Gaussian processes to extract line velocities and pseudo-equivalent widths (along with RSi, etc.) of a given spectrum. Designed for Type Ia's, however mostly generalized for any given feature (see code). See example for use.
git clone https://github.com/anthonyburrow/spextractor.git
cd spextractor
pip install .