New in v12.12.1

New features

• New Models:
  
  

  polconst	Polarization constant with energy.
  polpow	Polarization power law with energy.
  pollin	Polarization linear with energy.

• Updated Models:
  • rotpol has been renamed as polrot for consistency with the other spectropolarimetric models.
  • Replaced fixed size internal array in compbb with one which is allocatable. This fixes a potential problem with large numbers of energy bins.
  • Simplified code for ismabs model and fixed offset by one bin problem when using the tabulated data. Converted ismabs, ismdust, and olivineabs to double precision fortran models. Rationalized variable names and removed copies of subroutines.
  • Added new math operators atan2, sinh, sinhd, cosh, coshd, tanh, tanhd, sign, heaviside, boxcar, atan, asinh, acosh, atanh, erf, erfc, and gamma for use in mdefine and newpar.
  • mdefine expressions can now include other mdefined models.

• Plotting:
  • Added option to appropriate plots to specify the plot group numbers to use in the plot. eg plot 1 data resid makes the data and residuals plots for plot group 1 only.
  • Added plot polangle and plot polfrac options. These plot polarization angle and fraction. One set of data points and errors are produced for each data group. Each data group must have complete sets of I,Q,U Stokes parameter spectra.

• tclout stat now allows contributions to the fit statistic from individual spectra to be retrieved.

• Changes to internal functions:
  • Made a version of tableInterpolate which passes a map of XFLT values instead of a spectrum number. This allows other users of the library to run their code without a spectrum loaded.
  • Changed variables and comments in LinearInterp to improve clarity. Added C and Fortran wrappers in XSFunctions/Utilities for the LinearInterp routines. Fixed error in linInterpInteg in first bin(s) if target binning is much finer than current. Added double precision versions of LinearInterp wrappers.

Bug fixes

All bug fixes to v12.12 released as patches are included in v12.12.1. In addition, the following bugs have been fixed.

• Batch mode scripts which did not exit were leaving command echoing in a disabled state.
• When entering a Tcl control structure from the Xspec prompt, the new prompt string wrongly contained the ``puts -nonewline'' command.
• When calling setplot with an abbreviated option name, quotes and escape characters were not handled properly.
• Restored the ability for users to include header files from XSFunctions and XSFunction/Utilities in their local models, without having to also specify the path.
• Fix to mdefine expression parsing when using MIN or MAX in combination with xspec model functions.
• Fix to handling of errors associated with models. There was an inconsistency in whether errors were variance or sqrt(variance). Any such errors should be calculated as variance.