astrostat / pyblocxs

MCMC module for X-ray analysis in Sherpa

pyblocxs

MCMC module for X-ray analysis using CIAO/Sherpa

Accounts for calibration uncertainty (effective areas only) using PragBays and FullBayes.

References:

• Analysis of Energy Spectra with Low Photon Counts via Bayesian Posterior Simulation van Dyk, D.A., Connors, A., Kashyap, V.L., and Siemiginowska, A., 2001, ApJ, 548, 224 https://ui.adsabs.harvard.edu/abs/2001ApJ...548..224V/abstract
• pyblocxs: Bayesian Low-Counts X-ray Spectral Analysis in Sherpa Siemiginowska, A. ; Kashyap, V. ; Refsdal, B. ; van Dyk, D. ; Connors, A. ; Park, T., ADASS, ASP Conference Vol. 442, p.439 https://ui.adsabs.harvard.edu/abs/2011ASPC..442..439S/abstract
• How to handle calibration uncertainties in high-energy Astrophysics Kashyap, V.L., Lee, H., Siemiginowska, A., McDowell, J., Rots, A., Drake, J., Ratzlaff, P., Zezas, A., Izem, R., Connors, A., van DYk, D., and Park, T., 2008, Observatory Operations: Strategis, Processes, and Systems, Eds. Roger J. Brissenden and David R. Silva, Proc. of SPIE, v7016, pp.70160P-70160P-8 https://ui.adsabs.harvard.edu/abs/2008SPIE.7016E..0PK/abstract
• Accounting for Calibration Uncertainties in X-ray Analysis: Effective Areas in Spectral Fitting Lee, H., Kashyap, V.L., van Dyk, D.A., Connors, A., Drake, J.J., Izem, R., Meng, X.-L., Min, S., Park, T., Ratzlaff, P., Siemiginowska, A., and Zezas, A., 2011, ApJ, 731, 126 https://ui.adsabs.harvard.edu/abs/2011ApJ...731..126L/abstract
• A Fully Bayesian Method for Jointly Fitting Instrumental Calibration and X-Ray Spectral Models Xu, J., van Dyk, D.A., Kashyap, V.L., Siemiginowska, A., Connors, A., Drake, J., Meng, X.-L., Ratzlaff, P., and Yu, Y., 2014, ApJ, 794, 97 https://ui.adsabs.harvard.edu/abs/2014ApJ...794...97X/abstract

pyblocxs's Issues

Make pyblocxs installable via pip

It would be nice to make pyblocxs installable via pip, for this one could just copy it into an existing Python package template e.g. https://packaging-guide.openastronomy.org/en/latest/ and provide minimal documentation.

Problem with pyblocxs and ciao 4.10

Hi,

I have initialised ciao and set the PYTHONPATH variable to point to the unzipped yblocxs-master directory but it refuses to load into python, see below. Is this a python 2 vs python 3 issue?

Thanks for any help,
Rhys Morris

source /usr/local/ciao64/ciao-4.10/bin/ciao.bash
CIAO configuration is complete...
CIAO 4.10 Thursday, April 12, 2018
bindir : /usr/local/ciao64/ciao-4.10/bin
CALDB : 4.7.9

which python
/usr/local/ciao64/ciao-4.10/bin/python

export PYTHONPATH=/usersc/phrahm/pyblocxs-master

python
Python 3.5.4 (default, Oct 25 2017, 15:37:39)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-18)] on linux
Type "help", "copyright", "credits" or "license" for more information.

import pyblocxs
Traceback (most recent call last):
File "", line 1, in
File "/usersc/phrahm/pyblocxs-master/pyblocxs.py", line 1, in
from ui import *
File "/usersc/phrahm/pyblocxs-master/ui.py", line 35
raise RuntimeError, "No fit results available!"
^
SyntaxError: invalid syntax