This program is part of the DiffPy and DANSE open-source projects at
Michigan State University and is available subject to the conditions
and terms laid out below.

If you use this program to do productive scientific research that leads
to publication, we ask that you acknowledge use of the program by citing
the following paper in your publication:

    C. L. Farrow, P. Juhas, J. W. Liu, D. Bryndin, E. S. Bozin,
    J. Bloch, Th. Proffen and S. J. L. Billinge, PDFfit2 and
    PDFgui: computer programs for studying nanostructure in
    crystals, J. Phys.: Condens.  Matter 19, 335219 (2007)

Copyright 2006-2007, Board of Trustees of Michigan State University,
All rights reserved.

For more information please visit the project web-page:
    http://www.diffpy.org
or email Prof. Simon Billinge at sb2896@columbia.edu

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

  * Neither the name of MICHIGAN STATE UNIVERSITY nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.