pyrat - Python Radio Astronomy Toolkit
pyrat is a package to make handling large, multi-frequency visibility data sets easier. It's designed to work on datasets that are too large to fit in main memory, using HDF5 files as buffers for storing data on hard disk when it is not needed. The data structures have been designed with the application of imaging in mind, but the library could just as well be used for other projects where manipulation of broadband imaging and/or visibility data is needed.
Features include:
- Buffering of data using H5PY
- Convenient data structures for handling both imaging and visibility data.
- Methods for reading visibility data from MeasurementSet files.
- Helper class for handling parameter sets and parsing parameter set files.
- Helper class for writing structured log information to screen and a file.
Installation instructions
Prerequisites for pyrat include
- python
- numpy
- pyrap
- h5py
To install, simply type
python setup.py install
The pyrat modules should then be importable from your python code, e.g.
import pyrat.Messenger as M
About pyrat
pyrat is licensed under the GPLv3.
pyrat has been developed at the Max Planck Institute for Astrophysics and within the framework of the DFG Forschergruppe 1254, "Magnetisation of Interstellar and Intergalactic Media: The Prospects of Low-Frequency Radio Observations."