== What is XDS, and how to obtain it? ==
XDS is a program package written for the "reduction" of 2-dimensional data images ("frames") obtained from crystals irradiated with monochromatic X-rays. The package mainly consists of the programs [[XDS]] (which processes a single dataset), [[XSCALE]] (for scaling of several datasets) , [[XDSCONV]] (for conversion of output file to other formats) and [[
VIEW]] (for visualizing).
The author of the program package is Wolfgang Kabsch (Wolfgang dot Kabsch at mpimf-heidelberg dot mpg dot de).
The program is free for academic use, and can be downloaded from http://
www.mpimf-heidelberg.mpg.de /~kabsch/xds/html_doc/downloading.html .
Documentation is at http://
www.mpimf-heidelberg.mpg.de/~ kabsch/ xds .
There is another program available, which serves to produce additional output of tables and plots. This is not part of the official XDS package;
it's name is [[XDSSTAT]] (written and distributed by Kay Diederichs) .
== Links to XDS papers by Wolfgang Kabsch ==
# [http://dx.doi.org/10.1107/S0021889893005588 ''J. Appl. Cryst.'' (1993). 26, 795-800. Automatic processing of rotation diffraction data from crystals of initially unknown symmetry and cell constants]. This builds upon publication 1. and gives further important details of the IDXREF step, in particular about space-group determination.
# [http://it.iucr.org/Fa/contents/ Chapters 11.3 and 25.2.9 in ''International Tables for Crystallography Volume F: Crystallography of Biological Macromolecules'']
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