Authors:

• Francesco de Gasperin (main developer)
• David Rafferty (h5parm exporter)
• Maaijke Mevius (CT separation)
• Jose Sabater Montes
• Martin Hardcastle
• Andreas Horneffer

Contents:

• doc/: documentation
• examples/: some examples h5parm to use with validation/test parsets
• operations/: containts all the modules for operations
• parsets/: some examples parsets
• tools/: contains some tools, mostly to convert back and forward from parmdb to h5parm

Install:

• Get LoSoTo from https://github.com/revoltek/losoto
• Install losoto by simply: python setup.py install --prefix=~/mydir/
• Alternatively: pip install --allow-external --upgrade --user https://github.com/revoltek/losoto/archive/master.zip
• In cep3 use the copy of the code in ~fdg/scripts/losoto/ (source the tool/lofarinit.[c]sh file which is shipped with the code)
• Prepare a parset starting from the parset/losoto.parset
• in case of problems write to Francesco de Gasperin: astro@voo.it

Flag: LoSoTo has an internl flag system encoded in the weight column. Weights are not currently used but some tasks set them to 0 to "flag" a datapoint. Flagged datapoints are then saved as NaNs by the H5parm_exporter.py

Documentation: Documentation extracted from the LOFAR cookbook is present in the doc directory A detailed explanation of all the parameters for each operation is in: parsets/losoto.parset

Used packages:

• PyTables version: 3.2.2
• HDF5 version: 1.8.4
• NumPy version: 1.9.0
• Python version: 2.6.5 (r265:79063, Apr 16 2010, 13:57:41) [GCC 4.4.3]
• Platform: linux2-x86_64
• Byte-ordering: little
• Default encoding: ascii