ctools 1.6 release (29 May 2019)

Overview

ctools 1.6 is a major release that adds significant functionality.

In particular, this release provides:

• Support for H.E.S.S. public data release analysis

• Support for Xspec spectral analysis

• Improved computation speed for ctskymap and csphagen

• Parallelisation of various cscripts

• Support for source variability searches

• Support for Python pickeling

• Code Generator to facilitate adding ctools and cscripts

Bug fixes

• csspec now properly propagates instrument name for On/Off observations

• [2883] - csresspec now also works for observation specific models

• [2839] - Fix ring background computation in ctskymap for small roiradius

• [2721] - Apply event bin weighting in ctmodel for stacked computation

• [2694] - Compute DETX and DETY in ctmodel if they are not available

• [2686] - Do no longer set missing boundaries in :doxy:`ctool::get_observations` and :doxy:`ctool::setup_observations`

• [2682] - Avoid ctselect error in case that RoI radius is unchanged

• [2652] - Defer import of ROOT module in csroot2caldb to run method

• [2456] - Handle zero model for SUBDIV method in show_response.py

• [2448] - Fix bug when using precomputed model in csresspec

• [2420] - Keep existing library path in installation script on Mac OS X

Improvements

• [2878] - Add more spatial models to csbkgmodel

• [2868] - Add GAUSS(E) model to csbkgmodel

• [2842] - Log warning if edisp=no

• Add max_iter parameter to ctbutterfly, cterror, ctlike, cttsmap, ctulimit, and cstsmapsplit to allow controlling the maximum number of fit iterations.

• [2763] - ctbkgcube now requires an input counts cube

• [2725] - Add exclusion_map() methods to ctskymap, csphagen, cslightcrv and csphasecrv

• [2714] - Enable ctbin to produce counts cubes for a joint binned analysis. Rename outcube to outobs parameter.

• [2712] - Add Jupyter notebooks for H.E.S.S. DR1

• [2711] - csphagen now creates appropriate model for likelihood fitting

• [2685] - Add :doxy:`ctbkgcube::cntcube` method Account for varying energy thresholds in ctbin weight computation Unnormalize background cube values in ctbkgcube

• Add use_model_bkg parameter to cslightcrv

• [2671] - Do not skip bins with zero counts in csspec

• [2670] - Use ENERG instead of ETRUE in energy dispersion axis names in csroot2caldb

• [2662] - Add like_accuracy parameter to ctbutterfly, cterror, ctlike, cttsmap, ctulimit, and cstsmapsplit to allow controlling the accuracy of the maximum likelihood computation

• [2659] - Add hidden use_model_bkg parameter to csphagen

• [2656] - Use full RMF true energy range for On/Off analysis in csspec

• [2513] - Transparently update parameter files

• [2498] - Make cssrcdetect more robust

• [2490] - Change formula for number of true energy bins in csphagen

• [2421] - Add nthreads parameter to ctobssim, ctbin, ctlike, cterror and ctmodel to control parallel computations

• [2404] - csphagen produces Xspec compliant data

• Add show_rmf.py example script

• [2343] - Change CTA 3D background BGD keywords to BKG

• [2313] - Add ras() and decs() methods to csobsinfo

• [2312] - Also compute TS in csspec for On/Off analysis using wstat statistic

• [2311] - Allow specifying of input skymap to ctskymap tool

• [2309] - Accelerate IRF and RING background methods in ctskymap

• [2233] - Add upper limit computation is csspec for NODES method

• [2054] - Define MET with respect to the observation time reference or the mjdref user parameter

New features

• [2723] - Add show_significance_distribution.py example script

• [2713] - Add ctfindvar tool

• [2709] - Add code generator

• [2694] - Add csbkgmodel script

• [2421] - Parallelise cslightcrv, csphasecrv, csspec, cssens, csphagen, cspull and cstsdist

• [1938] - Support pickeling of ctools and cscripts in Python

Clean up

• Move ctool::set_obs_bounds() to ctobservation::set_obs_bounds()

• [2758] - CTA background rates are now per ontime

• Remove ctools::is_valid_filename() method

• [2054] - Remove ctools::time_reference constant