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PDFFIT                                                       Version 1.0
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PDFFIT is a program for the full profile structural refinement of the
atomic pair distribution function (PDF). 

The main features of the program include:

  - Refinement of lattice parameters, positions, anisotropic temperature
    factors and occupancies.

  - Multi phase refinement

  - Simultaneous refinement of multiple data sets

  - PDFFIT is controlled by a command language allowing FORTRAN
    style constructions 

  - Command language allows arbitrary parameter constraints

  - Distribution includes extensive manuals and a online help function

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