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New issues from Xspec 12.11.0
Frequently Asked Questions
List of currently outstanding issues.
Patches:
latest update
12.11.0m Jun 16, 2020
Requires patch installer v4.11
or later
To apply patches, you'll need to have downloaded and already built the source code distribution
of XSPEC. For details about the patch installer including options available with the latest v4.12, click
here.
Otherwise, just follow the instructions below.
(Note: This assumes you have already set your HEADAS environment variables with the
headas-init script, as you would if you were running XSPEC.)
To make sure your XSPEC installation is up to date with ALL listed patches:
1. If you don't already have the patch installer
tcl script (v4.11 or later), download and place it in the XSPEC src directory. This directory
should be at heasoft-[ver]/Xspec/src from the source code distribution.
2. Download the latest patchfile into
the same directory. There is no need to unzip/untar the patchfile
since the installer will do that.
3. At the command line, launch the script by typing
'tclsh patch_install_[ver].tcl',
and that's all.
The script should detect which patches you've installed previously, copy
the new code files to the necessary directories, determine whether complete or only partial
rebuilds are necessary, and finally perform the rebuilds. Numbers listed in red indicate that the patch modifies the interface
to one or more of XSPEC's libraries. These patches will generally cause longer rebuilds. If you
have a local model library, it is recommended (though not always necessary) that you rebuild it
with initpackage after applying red patches.
| 12.11.0a |
For the voigt model, very large values of sigma may cause
the line to overflow either the low or high end of the energy range.
Our thanks to Doug Burke for pointing this out.
Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSFunctions/
voigtLine.cxx.
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| 12.11.0b |
The statistic command is not properly handling the case when
an extra argument is given to specify the weight, but the weighting
method doesn't exist.
Our thanks to Dimitris Maniadakis for pointing this out.
Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSStat/
FitStatMethod.cxx,
TestStatMethod.cxx, and src/XSUser/Handler/
xsStatistic.cxx.
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| 12.11.0c |
Xspec is not catching the case when circular parameter link
dependencies are created, and may hang as a result.
Our thanks to Pinaki Roy for pointing this out.
Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSModel/Parameter/
Parameter.cxx and
.h.
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| 12.11.0d |
This adds the option of appending to log files by placing
a '>' character in front of the log
command file name. Our thanks to Mariano Mendez
for the suggestion. Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSUser/UserInterface/
TclStream.cxx.
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| 12.11.0e |
If Xspec attempts to read in a response matrix which contains
NUMELT or NUMGRP keywords with erroneous values, it will terminate. It
should just issue a warning message.
Our thanks to Ewan O'Sullivan for pointing this out.
Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSModel/Data/Detector/
ResponseMatrix.cxx.
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| 12.11.0f |
This patch is needed to allow users to directly access the online manual
pages for the new models added for Xspec 12.11.0, using the "help model [modname]"
command.
Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/manager/
manualList.txt.
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| 12.11.0g |
The tclout command's arf and response options are not
returning file names. Our thanks to Andres
Gurpide for pointing this out. Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSUser/Handler/
xsTclout.cxx.
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| 12.11.0h |
Fixes error which causes a crash in various cooling flow models if
switch is set to 2 before changing the redshift
from 0. Our thanks to Anna Ogorzalek for
reporting this. Report added on Apr 22, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSFunctions/
calcMultiTempPlasma.cxx.
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| 12.11.0i |
Cannot load response files which have a '+' in the middle of the
file name. Xspec is mistaking the '+' for extended file name syntax.
Our thanks to Jiangtao Li for reporting this.
Report added on Apr 27, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSUtil/Parse/
XSparse.cxx.
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| 12.11.0j |
In PyXspec, the Spectrum.dummyrsp() function (for assigning
a dummy response to a specific spectrum and source) is mixing up the
spectrum number and the source number.
Our thanks to Johannes Buchner for reporting this.
Report added on Apr 28, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSUser/Python/xspec/
spectrum.py.
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| 12.11.0k |
For some complex fitting and error command cases, XSPEC may terminate
with a GSL message such as 'SVD decomposition failed to converge.'
Report added on May 18, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSFit/FitMethod/LevMarq/
InvertSVD.cxx,
LevMarq.cxx, and src/XSUtil/Numerics/
SVDwrapper.cxx.
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| 12.11.0l |
The new multi-response code was not calculating
effective areas correctly. Our thanks to Mike Loewenstein for pointing this out.
Report added on May 28, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSModel/Data/Detector/
MultiBinningResponse.cxx and
SingleResponse.cxx.
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| 12.11.0m |
This includes a couple of fixes to Bayesian inference calculations.
The first adds the Bayesian prior contributions from frozen (non-linked) parameters
belonging to currently active (for fitting) models. The second fixes a bug
that was preventing Levenberg-Marquardt fits from finding a good minimum when
Bayesian inference was in use. Our thanks to Jeremy Sanders for bringing these
issues to our attention.
Report added on Jun 16, 2020.
This patch modifies heasoft-6.27/Xspec/src/XSFit/Fit/
Bayes.cxx and
StatManager.cxx.
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