A Python toolbox for post analysis of DOAS (Differential Optical Absorbtion Spectroscopy) results

pip install pydoas==1.2.4


pydoas is a Python library for reading, postprocessing and plotting of DOAS (Differential Optical Absorption Spectroscopy) fit results. It supports default import of the result file format of DOASIS. Further import formats for fast data access can easily be defined by the user.


18 Feb 2018: now also supports Python3


Copyright (C) 2017 Jonas Gliss (

This program is free software: you can redistribute it and/or modify it under the terms of the BSD 3-Clause License

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See BSD 3-Clause License for more details (


  • numpy
  • matplotlib
  • pandas


First, make sure to have all requirements installed (prev. section). Then, pydoas can be installed from PyPi using:

pip install pydoas

or from source (hosted on GitHub) by downloading and extracting the latest release or downloading / cloning the repo. If you download manually, call:

python install

after download and extraction of the source directory.

Instructions and code documentation

The code documentation of pydoas is hosted here

Getting started

After installation try running the example scripts in order to test the installation. The scripts are also meant to provide an easy start into the main features of pydoas.