Abstract.
Interpreting samples from likelihood or posterior probability density functions is rarely as straightforward as it seems it should be. Producing publication-quality graphics of these distributions is often similarly painful. In this short note I describe pippi, a simple, publicly available package for parsing and post-processing such samples, as well as generating high-quality PDF graphics of the results. Pippi is easily and extensively configurable and customisable, both in its options for parsing and post-processing samples, and in the visual aspects of the figures it produces. I illustrate some of these using an existing supersymmetric global fit, performed in the context of a gamma-ray search for dark matter. Pippi can be downloaded and followed at http://github.com/patscott/pippi.
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References
B.C. Allanach, C.G. Lester, Phys. Rev. D 73, 015013 (2006) arXiv:hep-ph/0507283 DOI:10.1103/PhysRevD.73.015013
R. Trotta, F. Feroz, M. Hobson et al., JHEP 12, 24 (2008) arXiv:0809.3792 DOI:10.1088/1126-6708/2008/12/024
P. Scott, J. Conrad, J. Edsjö et al., JCAP 1, 31 (2010) arXiv:0909.3300 DOI:10.1088/1475-7516/2010/01/031
Y. Akrami, P. Scott, J. Edsjö et al., JHEP 4, 57 (2010) arXiv:0910.3950 DOI:10.1007/JHEP04(2010)057
Y. Akrami, C. Savage, P. Scott et al., JCAP 4, 12 (2011) arXiv:1011.4318 DOI:10.1088/1475-7516/2011/04/012
Y. Akrami, C. Savage, P. Scott et al., JCAP 7, 2 (2011) arXiv:1011.4297 DOI:10.1088/1475-7516/2011/07/002
P. Bechtle, T. Bringmann, K. Desch et al., JHEP 6, 98 (2012) arXiv:1204.4199 DOI:10.1007/JHEP06(2012)098
A. Lewis, S. Bridle, Phys. Rev. D 66, 10, 103511 (2002) arXiv:astro-ph/0205436 DOI:10.1103/PhysRevD.66.103511
R. Easther, H. Peiris, Phys. Rev. D 85, 103533 (2012) arXiv:1112.0326 DOI:10.1103/PhysRevD.85.103533
A. Putze, L. Derome, D. Maurin, Astron. Astrophys. 516, A66 (2010) arXiv:1001.0551
R. Trotta, G. Jóhannesson, I.V. Moskalenko et al., Astrophys. J. 729, 106 (2011) arXiv:1011.0037 DOI:10.1088/0004-637X/729/2/106
W.H. Press, S.A. Tuekolsky, W.T. Vetterling, Numerical Recipes, 3rd edition (Cambridge University Press, 2007)
J. Skilling, in American Institute of Physics Conference Series, edited by R. Fischer, R. Preuss, U.V. Toussaint, Vol. 735 (2004) pp. 395--405
F. Feroz, M.P. Hobson, M. Bridges, Mon. Not. R. Astron. Soc. 398, 1601 (2009) arXiv:0809.3437 DOI:10.1111/j.1365-2966.2009.14548.x
P. Charbonneau, Astrophys. J. Suppl. Ser. 101, 309 (1995) 10.1086/192242
R. Storn, K. Price, J. Global Optimization 11, 4, 341 (1997) 10.1023/A:1008202821328
P. Scott, C. Savage, J. Edsjö, to be published in JCAP (2012) arXiv:1207.0810
L. Moneta, K. Belasco, K. Cranmer et al., PoS ACAT2010, 057 (2010) arXiv:1009.1003
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Scott, P. Pippi — Painless parsing, post-processing and plotting of posterior and likelihood samples. Eur. Phys. J. Plus 127, 138 (2012). https://doi.org/10.1140/epjp/i2012-12138-3
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DOI: https://doi.org/10.1140/epjp/i2012-12138-3