Advanced Usage via Python Interface

The best way to learn about the Python interface is through running the example notebooks. We have made an intermediate notebook to demonstrate how a new user can download the required filters and run lephare on their own data. You can download the notebook from here which should directly run following installation of lephare via pip. You can also see the executed notebook with all outputs here.

Note

Lephare can be used either via the Python interface or from the command line. These both have different use cases. The Python interface is newer and has greater flexibility.

The notebooks are the best way to learn how to use the Python interface. The Python API is useful for understanding all the individual classes and methods. We hope that class and function doctstrings will be informative and intuitive. Please let us know via a GitHub issue if any functionality is unclear.

Notebooks

We explain the Python interface mainly through the following example notebooks. They range from very simple examples largely to test the installation to demonstrating advanced access to the low level functionality. They should all be able to run independently following installation.

• Minimal full run
• Typical use case
  • Update the config
  • Download the required SEDs and additional extinction laws
  • Setting new filters
    • Set specific config values for
  • Run prepare
    • Creating the input table
  • Run process
• Typical use case: physical parameters
  • Update the config
  • Download the missing data
  • Run prepare
    • Creating the input table
  • Run process
• Detailed run
  • Set up the parameters
  • Create filter library
    • Getting new filters
  • Create SED library
  • Create a magnitude library
  • Run the photoz
    • Save the parameters that have been used
  • Create output in fits
• Developer example: Building a list of onesources
• Developer example: Example of usage of magSvc
• Developer example: Data retrieval
  • Getting a list of file names to download
  • Download the registry file
  • Download the data files
  • If you don’t know what subset you need and want to get all the data at once
• Developer example: Testing fit of one object of the catalogue
• Developer example: Example of the cosmology class
  • cosmology module
• Developer example: Demonstration of SED objects