isis-1.0.8 is available

ISIS version 1.0.8 is now available from
   http://space.mit.edu/CXC/ISIS

I recommend upgrading to this version to take advantage of the
many new features added since version 0.9.80.  

Some of the new features are:

  * import("xspec") now adds 105 XSPEC additive and
    multiplicative models and provides access to the XSPEC help
    files. XSPEC table models are also supported. Optionally,
    the XSPEC module can be statically linked to ISIS so that
    all the XSPEC functions are automatically available and
    import("xspec") is unnecessary.
    
    Use list_functions() to get a complete list of imported
    functions.  

    IMPORTANT CHANGE:
    
    Because the number and order of parameters of imported XSPEC
    fit-functions now matches the XSPEC definition, some of these
    functions now have different interfaces than in isis-0.9.80. 
    Also, name conflicts required changing the names of two ISIS 
    intrinsic fit-functions:

	     powerlaw => Powerlaw
	      lorentz => Lorentz

  * New routines for generating 2D confidence contour plots:
       conf_map_counts
       conf_map_flux
       conf_[o]plot
    Contour plot data can also be saved as a FITS image and
    then reloaded.  See:
       save_conf
       load_conf

  * More versatile rebinning functions:
       rebin_dataset
       rebin_rmf
       rebin_array

  * Simpler I/O of columnar ASCII tables:
       readcol
       writecol

  * New load_dataset() function allows loading a PHA file,
    ARF and RMF with one command.
    
  * save_input() function allows saving the command history
    so far, even if you forgot to turn on logging.

  * New set_rebin_error_hook() function allows user-control
    over error propagation when rebinning counts spectra.

  * New latex2pg() function supports plot annotations using TeX
    syntax for subscripts, superscripts and Greek characters.
    
  * New 'Isis_Verbose' intrinsic variable gives more control
    over the verbosity of output warnings and error messages.
    By default, batch mode is automatically less verbose.
    
  * The web pages have been updated to include a few new usage
    examples -- see http://space.mit.edu/CXC/ISIS/examples.html

    
John

-- 
John C. Houck                       MIT Center for Space Research
NE80-6005: 617-253-3849                   77 Massachusetts Avenue
42:21:55.105N, 71:05:28.122W             Cambridge, MA 02139-4307
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