spectrum

The methods in spexxytools spectrum are used for handling spectra.

extract

With this tool a given wavelength range can be extracted from a list of spectra:

usage: spexxytools spectrum extract [-h] [-p PREFIX] start end input [input ...]

positional arguments:
  start                 Start of wavelength range
  end                   End of wavelength range
  input                 Input spectrum

optional arguments:
  -h, --help            show this help message and exit
  -p PREFIX, --prefix PREFIX
                        Output file prefix (default: extracted_)