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New issues from Xspec 12.4.0
All platforms: In order to build from source code using g++ v4.3.0 (or later),
CCfits v2.0 is required and XSPEC must be patched to level 12.4.0x or higher. These versions are now
automatically included when downloading a new distribution of XSPEC from the current
HEAsoft release page.
Frequently Asked Questions
List of currently outstanding issues.
Patches:
latest update
12.4.0ao Sep 04, 2008
Requires patch installer
v2.4
To apply patches, you'll need to have downloaded and already built the source code distribution
of XSPEC. For details and more information about the patch installer, 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 v2.4
tcl script, download and place it in the XSPEC src directory. This directory
should be at heasoft-6.5/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_2.4.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.
| 12.4.0a |
This fixes some cases where invalid input leads to segmentation faults:
The model command crashes for certain forms of invalid model syntax.
The tclout command crashes for some of its options when the invalid spectrum
number 0 is specified while there are data sets loaded. Our thanks to Jeremy
Sanders for pointing this out.
Report added on Dec 10, 2007.
This patch modifies headas/Xspec/src/XSUser/Handler/
HandlerUtils.cxx, XSUtil/Parse/
Expression.cxx, and XSPlot/Plot/
Plot.cxx
|
| 12.4.0b |
For the model command, entering the abbreviated name bkn
should select the bknpower component and not the bkn2pow component.
Our thanks to Davide Donato for pointing this out.
Report added on Dec 18, 2007.
This patch modifies headas/Xspec/src/manager/
model.dat
|
| 12.4.0c |
DOS-mode scripts (with their extra carriage-return characters) are not properly handled for multi-line commands.
Our thanks to Laura Brenneman for pointing this out. This also fixes another
scripting bug in which a line with 'n' followed by blank spaces is wrongly
interpreted as 'newpar' rather than 'no'.
Report added on Dec 27, 2007.
This patch modifies headas/Xspec/src/XSUser/UserInterface/
execscript.cxx, XSUtil/Parse/
XSparse.cxx
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| 12.4.0d |
The tclout rate option should also provide access to the percentage of net
rate to total rate. This is now the 4th output value, following net rate,
variance, and model rate. Our thanks to Anna Lia Longinotti for suggesting this.
Report added on Jan 15, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsTclout.cxx
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| 12.4.0e |
plot ufspec does not plot spectral data points whose corresponding
folded model values are negative. Our thanks to Marco Ajello for pointing this out.
Report added on Jan 29, 2008.
This patch modifies headas/Xspec/src/XSPlot/Commands/
PlotUnfolded.cxx
|
| 12.4.0f |
This modifies the ignore and notice command handling for the case
of where whitespace is left after the colon in an expression of the form:
ignore < spectrum range>: < additional arg>
XSPEC will now assume < additional arg> is the channel (or energy) range to be applied
to < spectrum range> (unless < additional arg> contains another colon). Previously XSPEC
would assume the channel range was missing and simply apply the default values.
Report added on Feb 01, 2008.
This patch modifies headas/Xspec/src/XSModel/Data/
SpectralData.cxx and XSUser/Handler/
HandlerUtils.cxx
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| 12.4.0g |
XSPEC's response matrix convolution algorithm previously was limited to matrices of size
MxN < 2^31. This patch greatly increases the size limit, which is needed for analyzing with the
latest Con-X response matrix.
Report added on Feb 01, 2008.
This patch modifies headas/Xspec/src/XSModel/Data/Detector/
MultiResponse.cxx,
.h,
RMF.cxx,
.h
|
| 12.4.0h |
The Y-axis label for plot chisq should include sign(data-model)
rather than |data-model|.
Report added on Feb 11, 2008.
This patch modifies headas/Xspec/src/manager/
plotLabels.dat,
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| 12.4.0i |
Table model calculations ignore the redshift parameter z if it is
set to a negative value. Our thanks to Achille Nucita for pointing this out.
Note: This fix will still only allow z > -1.0, otherwise it throws an error.
Report added on Feb 11, 2008.
This patch modifies headas/Xspec/src/XSModel/Component/OGIPTable/
OGIPTable.cxx,
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| 12.4.0j |
When loading its model initialization file, XSPEC is not properly parsing
model parameters with multi-word unit labels, such as the xi parameter of
the pexriv model. This results in the parameter's initial value and ranges
being set to zero and marked as frozen.
Report added on Feb 21, 2008.
This patch modifies headas/Xspec/src/XSModel/Parameter/
ModParam.cxx,
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| 12.4.0k |
Unfolded spectrum plots (plot ufspec, eufspec, eeufspec) cannot be
performed on energy bins with widths smaller than 10^-4 keV. Our thanks to Ranjan Vasudevan for
pointing this out.
Report added on Feb 21, 2008.
This patch modifies headas/Xspec/src/XSPlot/Plot/
Plot.cxx,
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| 12.4.0l |
Once the error command is run for a parameter belonging to
a named model, it does not allow the user to specify unnamed-model
parameters during future error runs. Our thanks to Kip Kuntz for pointing this out.
Report added on Feb 25, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsError.cxx,
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| 12.4.0m |
The start-up statistic, method, and weight settings in the user's
Xspec.init file are effectively ignored. Instead these always
start with Xspec's hardcoded default settings (chisq, leven, and standard respectively).
Our thanks to Maurice Leutenegger for pointing this out.
Report added on Mar 05, 2008.
This patch modifies headas/Xspec/src/main/
xspec.cxx and src/XSUser/Global/
Global.cxx
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| 12.4.0n |
If the precise best-fit values are input as starting parameter values
to a Levenberg-Marquardt fit, for certain data sets and models the fit
may run through a large number of redundant loop iterations and produce "SVDCMP"
warning messages. Our thanks to Jeremy Sanders for pointing this out.
Report added on Mar 06, 2008.
This patch modifies headas/Xspec/src/XSFit/FitMethod/LevMarq/
LevMarq.cxx
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| 12.4.0o |
For xmmpsf and suzpsf mixing components, Xspec is unable
to parse RA and DEC strings with colon delimiters (entered with the
xset command).
Report added on Mar 06, 2008.
This patch modifies headas/Xspec/src/XSUtil/Numerics/
AstroFunctions.cxx
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| 12.4.0p |
The suzpsf mixing model component was assuming that the WMAP was
in sky coordinates, which is no longer true. With this patch it now
assumes detector coordinates for the WMAP.
Report added on Mar 07, 2008.
This patch modifies headas/Xspec/src/XSModel/Model/MixFunction/
PsfTraits.cxx
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| 12.4.0q |
The CHANTYPE value is not being picked up from the RMF file when doing a
fakeit none. The spectrum created is given CHANTYPE=PHA, which generates
a warning message when using the file in XSPEC if the RMF had CHANTYPE=PI.
Report added on Mar 14, 2008.
This patch modifies headas/Xspec/src/main/
xsTypes.h, src/XSModel/Data/
OGIP-92aData.cxx,
SpectralData.cxx, src/XSModel/Data/Detector/
MultiResponse.cxx,
OGIP-92aResponse.cxx,
RMF.cxx,
.h,
RealResponse.cxx, src/XSModel/Model/MixFunction/
Psf.h, headas/Xspec/Integral/
SPI_Data.cxx, and
SPI_Response.cxx
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| 12.4.0r |
This is an enhancement patch for the fakeit command. Previously,
fakeit could only produce OGIP data files based on one model and response per spectrum.
This will allow it to take advantage of XSPEC12's multiple models scheme. The faked
spectrum will now be generated from however many response and model pairs were assigned to the
original spectrum.
Report added on Mar 14, 2008.
This patch modifies headas/Xspec/src/XSModel/Data/
DataSet.h,
EinsteinData.cxx,
.h,
FakeDataInputRecord.cxx,
.h,
OGIP-92aData.cxx,
.h,
SfData.cxx,
.h, src/XSModel/GlobalContainer/
DataContainer.cxx,
ModelContainer.cxx, src/XSUser/Handler/
xsFakeit.cxx, headas/Xspec/Integral/
SPI_Data.cxx, and
.h
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| 12.4.0s |
plot efficiency produces wild values for the Y range when used on a
response with just one bin. It also crashes if run on a spectrum with no responses.
(This patch also improves the behavior of plot model and plot insensitivity when
the min and max Y values of the plotted points are the same.)
Report added on Mar 19, 2008.
This patch modifies headas/Xspec/src/XSPlot/Commands/
PlotEfficiency.cxx,
PlotInsensitivity.cxx
PlotModel.cxx, and src/XSPlot/Plot/
Plot.cxx
|
| 12.4.0t |
Running the data command with empty quotes for a file argument (data "")
causes a segmentation fault. Our thanks to Jeremy Sanders for pointing this out.
Report added on Mar 19, 2008.
This patch modifies headas/Xspec/src/XSModel/Data/
DataUtility.cxx and src/XSUser/Handler/
xsData.cxx
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| 12.4.0u |
The XSutility.cxx file should explicitly include the standard header
< climits> . Otherwise for certain compiler configurations, an undefined
symbol build error may occur for PATH_MAX. Our thanks to Francesco Tombesi for pointing this out.
Report added on Mar 28, 2008.
This patch modifies headas/Xspec/src/XSutil/Utils/
XSutility.cxx
|
| 12.4.0v |
This patch adds the ability to use the model command's active/inactive/none
options on unnamed models. (See
FAQ for an explanation of named vs. unnamed models.)
The syntax for this is: model unnamed [active | inactive | none]
Report added on Mar 28, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsModel.cxx
|
| 12.4.0w |
When using non-standard variance weighting (selected from the weight command),
if the chosen fit statistic is then toggled between chisq and cstat, the reported
weighting scheme also changes between non-standard and standard, as only standard weighting
can be used with cstat. However, XSPEC is not properly forcing a recalculation of the variances
in this situation, as can be seen by the unchanging error bars on data plots. Our thanks to
Stefano Bianchi and Fabrizio Nicastro for pointing this out.
Report added on Mar 28, 2008.
This patch modifies headas/Xspec/src/XSFit/Fit/
StatMethod.cxx, XSFit/StatMethod/ChiSquare/
ChiSquare.cxx, XSFit/StatMethod/Cstat/
Cstat.cxx, XSFit/StatMethod/Lstat/
Lstat.cxx, src/XSUser/Global/
Global.cxx, XSUser/Handler/
xsStatistic.cxx, and
xsWeight.cxx
|
| 12.4.0x |
This synchronizes the patchfile with the version of XSPEC12 released with the new
HEAsoft 6.4.1, which is required for compiling with g++-4.3.0. (Note that
g++-4.3.0 also requires v2.0 of the CCfits library, which is automatically
included with new HEAsoft downloads.) This patch also now makes it possible to use
gcc in general when building on Solaris platforms.
Report added on Apr 21, 2008.
This patch modifies headas/Xspec/src/main/
xspec.cxx, src/xslib/
syscsol.c, src/XSUtil/
Error.cxx,
Expression.cxx,
XSparse.cxx,
XSstream.cxx,
XSutility.cxx, src/XSFunctions/
XSF77.cxx,
XSCCall.cxx, src/XSModel/
DataInputRecord.cxx,
FakeDataInputRecord.cxx,
MultiResponse.cxx,
RealResponse.cxx,
RMF.cxx,
EinsteinIO.cxx,
OGIP-92aIO.cxx,
SumComponent.cxx,
AddTableComponent.cxx,
CGroupBase.cxx,
ConComponent.cxx,
MixBase.cxx,
MixComponent.cxx,
MulTableComponent.cxx,
ScaleParam.cxx, src/XSFit/
ChainIO.cxx, src/XSUser/
XSGlobal.cxx,
xsLmod.cxx,
xsShow.cxx,
Help.cxx,
HelpComposite.cxx,
TclRedAlert.cxx,
TclStream.cxx,
execscript.cxx,
unknow.cxx,
TclRegEx.cxx, src/XSModel/Model/MixFunction/
PsfImage.cxx,
Psf.h, src/initpackage/
processModelFile.cxx,
initpackage.cxx
|
| 12.4.0y |
A couple of fixes relating to the case where a fit parameter is pegged in a Lev-Marq fit
due to a zero or negative pivot element in the Hessian matrix. When this occurs the reported
covariance matrix is accordingly reduced in size, but XSPEC should also set the parameter's reported +/- value
to -1.0 to show that it was unable to calculate a sigma from the covariance matrix. It currently leaves
the +/- unchanged from its previous fit value (if any). Also in this case tclout simpars will cause the
program to abort, whereas it should just report an error and return to the prompt. Our thanks to Ranjan Vasudevan
for pointing this out.
Report added on Apr 23, 2008.
This patch modifies headas/Xspec/src/XSFit/FitMethod/LevMarq/
LevMarq.cxx and src/XSUser/Handler/
xsTclout.cxx
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| 12.4.0z |
If a valid fit exists, XSPEC will no longer consider it invalidated if only the
fit method is then changed. This will allow the use of the improve command on a Levenberg-Marquardt
fit, without having to first re-fit with a Minuit fitting method. Our thanks to Terry Gaetz for pointing this out.
Report added on May 01, 2008.
This patch modifies headas/Xspec/src/XSFit/Fit/
Fit.cxx and src/XSUser/Handler/
xsMethod.cxx
|
| 12.4.0aa |
The fakeit command does not allow an absolute pathname when prompting
for the fake dataset's output filename. Our thanks to Curtis McCully for pointing this out.
Report added on May 01, 2008.
This patch modifies headas/Xspec/src/XSUtil/Parse/
XSparse.cxx
|
| 12.4.0ab |
This adds the goodness option to the tclout command, which
will write the results of the most recent goodness run to the $xspec_tclout variable.
This option had been listed in the tclout command summary but was unimplemented. Our thanks to
Phil Evans for pointing this out.
Report added on Jun 10, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsTclout.cxx
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| 12.4.0ac |
After running dummyrsp in its no-channel mode, plot
command options which require defined channel energies may cause a crash. This
includes plot ufspec variants and plot data when in energy mode.
Our thanks to Ranjan Vasudevan for pointing this out.
Report added on Jun 17, 2008.
This patch modifies headas/Xspec/src/XSPlot/Plot/
Plot.cxx
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| 12.4.0ad |
The default upper limits for the plasma temperature parameter in the vapec and bvapec models
should be lowered from 79.9 to 68.447 keV. This is the maximum temperature for
which there is data in the apec_v[version]_coco.fits and apec_v[version]_line.fits files.
Our thanks to Pat Broos for pointing this out.
Report added on Jun 17, 2008.
This patch modifies headas/Xspec/src/manager/
model.dat
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| 12.4.0ae |
When using the gsmooth or swind1 models,
certain combinations of parameters can cause an invalid array access.
On 64-bit Linux systems this will cause a crash. Our thanks to Curtis McCully
for pointing this out.
Report added on Jul 08, 2008.
This patch modifies headas/Xspec/src/XSFunctions/
xsgsmt.f
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| 12.4.0af |
When settings have changed through either the xsect or cosmo commands,
the model calculations should be immediately updated. (This patch also improves
the cosmo command-line parser.) Our thanks to Stefano Bianchi for pointing this out.
Report added on Jul 08, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsCosmo.cxx and
xsXsect.cxx
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| 12.4.0ag |
The kerrd and nsa additive models will cause XSPEC to crash in
certain cases, the latter primarily on Intel/Mac platforms.
Report added on Jul 14, 2008.
This patch modifies headas/Xspec/src/XSFunctions/
kerrdisk.f and
nsa.f
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| 12.4.0ah |
The flux command with the err option is unable to calculate flux errors
for the case where there are gaps in the model source numbers assigned to a spectrum. (This exists
when source numbers are NOT numbered consecutively starting at 1, and occurs only when
analyzing with multiple models). Our thanks to Kalman Knizhnik for pointing this out.
Report added on Jul 23, 2008.
This patch modifies headas/Xspec/src/XSFit/Fit/
Fit.cxx
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| 12.4.0ai |
When proportional deltas are in use (via xset delta), the save model command
will write the parameter information string in a format that is not properly handled when
the saved file is reloaded at a later time. Our thanks to Pat Broos for pointing this out.
Report added on Jul 24, 2008.
This patch modifies headas/Xspec/src/XSModel/GlobalContainer/
ModelContainer.cxx and XSUser/Global/
XSGlobal.cxx
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| 12.4.0aj |
When the energies command is applied to an inactive model
(a model without an associated response), it is not immediately updating the model's calculation.
Report added on Jul 31, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsEnergies.cxx
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| 12.4.0ak |
The cutoffpl model can show a distortion for very low energies
(approx. E/B < 10^-3). The incomplete gamma function calculation which this
is based on needs to be improved in this region. Our thanks to Joern Wilms, Moritz Boeck,
and Manfred Hanke for pointing this out.
Report added on Aug 28, 2008.
This patch modifies headas/Xspec/src/manager/
model.dat, src/XSUtil/
Makefile, src/XSUtil/Numerics/
ExpInt.cxx,
.h,
IncGamma.cxx,
.h, src/XSFunctions/
Makefile,
cutoffPowerLaw.cxx,
functionMap.cxx,
.h,
xsFortran.cxx,
.h
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| 12.4.0al |
This adds the Fortran wrapper function xgtcht(console,log) for those wishing
to retrieve XSPEC's console and log chatter level settings from inside their
own Fortran local models. The function is equivalent to the xgtcht contained in
the xanlib library used by XSPEC11.
Report added on Aug 28, 2008.
This patch modifies headas/Xspec/src/XSFunctions/
xsFortran.cxx,
.h
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| 12.4.0am |
Enhancement patch required for reading data sets and responses in the new
format used by GLAST GBM files. The modifications include the removal of
the SPEC_NUM column for type-II data files, and the storing of multiple response
matrix extensions into one response file. XSPEC will now distinguish among
multiple response extensions by appending a curly-bracket specifier to the response
file name: myResponse.rsp{n} where n is the EXTVER keyword value of the extension.
Report added on Aug 28, 2008.
This patch modifies headas/heacore/CCfits/
CHANGES,
FITS.cxx, headas/Xspec/src/XSModel/Data/
DataSet.cxx,
.h,
OGIP-92aData.cxx,
.h, src/XSModel/Data/BackCorr/
OGIP-92aBackground.cxx, src/XSModel/Data/Detector/
OGIP-92aResponse.cxx,
RealResponse.cxx, src/XSModel/DataFactory/
OGIP-92aIO.cxx,
.h, src/XSUser/Handler/
xsResponse.cxx, src/XSUtil/Parse/
XSparse.cxx,
.h, headas/Xspec/Integral/
SPI_Data.cxx,
.h
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| 12.4.0an |
The energies command is not working when used on table model
components. (This is a side-effect of the forced recalculation that was added
with patch 12.4.0aj.) Our thanks to Roderick Johnstone for pointing this out.
Report added on Sep 03, 2008.
This patch modifies headas/Xspec/src/XSUser/Handler/
xsEnergies.cxx
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| 12.4.0ao |
Bug fix for the margin command. The bin at the low end of the
range (in each dimension) is also being assigned counts that fall
within 1 bin width below the edge.
Report added on Sep 04, 2008.
This patch modifies headas/Xspec/src/XSUtil/Numerics/
Histogram.h
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