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== 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) , and [[XDSCONV]] (for conversion of a reflection output file to other formats) . Additional auxiliary programs are [[cellparm]], [[2cbf]] and [[VIEWmerge2cbf]] (. [[XDS-viewer]], for visualizingframes, can be downloaded separately (see [[Installation]]).
The author of the program package is Wolfgang Kabsch (Wolfgang dot Kabsch at mpimf-heidelberg dot mpg dot de); since 2007 I contribute code, handle and fix bugs and teach XDS usage.
The program is free for academic use, and can be downloaded from http://wwwxds.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/downloading.html (if the download from that site fails, there's a copy at ftp://turn5.biologie.uni-konstanz.de/xds ).
Documentation is at http://wwwxds.mpimf-heidelberg.mpg.de/html_doc/XDS.html or [http://strucbio.biologie.uni-konstanz.de/~kabschdikay/XDS_html_doc/index.html here]. An open-source viewer [[XDS-Viewer]] is [http://xds -viewer.sourceforge.net available] for visualization of the control images written by [[XDS]] (and [[XSCALE]]). Latest versions of [[Adxv]] can also visualize XDS output files. There is another program available, which serves to produce additional output of tables and plots. This is not part of the official XDS package; its name is [[XDSSTAT]] (written and distributed by Kay Diederichs). Yet another program that produces frame-wise (for XDS_ASCII.HKL) or dataset-wise (for XSCALE.HKL) CC<sub>1/2</sub> statistics is [[XDSCC12]].  [[XDSGUI]], a graphical user interface, serves to help using XDS.
== Links to XDS papers by Wolfgang Kabsch ==
# [http://dx.doi.org/10.1107/S0021889888007903 ''J. Appl. Cryst.'' (1988). 21, 916-924. Evaluation of single-crystal X-ray diffraction data from a position-sensitive detector]. This is ''the'' reference for the integration and scaling algorithms employed in the INTEGRATE and CORRECT steps.
# [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://wwwit.iucr.org/iucr-top/commFa/commitcontents/volf.html Chapters 11.3 and 25.2.9 in ''International Tables for Crystallography Volume F: Crystallography of Biological Macromolecules''] # [http://dx.doi.org/10.1107/S0907444909047374 ''Acta Cryst.'' (don2010). '''D66'''t know , 133-144. Integration, scaling, space-group assignment and post-refinement.] the link to PDFs of thesedefinitive reference. Open access.# [http://dx.doi.org/10.1107/S0907444909047337 ''Acta Cryst.'' (2010). '''D66''', 125-132. XDS] the definitive reference. Open access.
== Purpose of the Wiki ==
== Contributing to the Wiki ==
* The MediaWiki software used here works in the same way as the well-known Wikipedia. This means that anyone with can read articles, but for editing existing pages, and creating new ones (this happens automatically when you click on a [[red link]]), you need a [[Creating an account|userid and password]] can edit existing pages, and create new ones.
* Short introduction to [[creating an article]]
* [[Topics]] as an attempt to provide a hierarchy of pages
* new articles: [[SSX]], [[Xscale_isocluster]], [[LIB]]
== News ==
== See also ==
[ftp://turn5.biologie.uni-konstanz.de/pub/XDS_Yamashita_ACA2014.pdf Keitaro Yamashita's talk about XDS processing given at ACA2014].
[http://strucbio.biologie.uni-konstanz.de/~dikay/XDS_Diederichs_ACA2011.pdf XDS talk given at ACA2011]
[https://www.researchgate.net/publication/236032099_Practical_use_of_XDS_%28for_data_reduction%29._Presented_in_April_4th_2013_Dept._of_Biochemical_Sciences_Sapienza_University_of_Rome?ev=prf_pub Practical use of XDS (for data reduction) - by Fulvio Saccoccia, Presented in April, 4th 2013; Dept. of Biochemical Sciences and Istituto Pasteur-Fondazione Cenci Bolognetti - Sapienza University of Rome. ]
[http://www.helmholtz-berlin.de/forschung/oe/funkma/soft-matter/forschung/bessy-mx/xdsapp/index_en.html XDSAPP, a graphical user interface for automatic data processing with XDS]