Editing Kabsch (section)

==Intro==
The Kabsch algorithm uses linear and vector algebra to find the optimal rotation and translation of two sets of points in N-dimensional space as to minimize the RMSD between them.  The following program is a Python implementation of the Kabsch algorithm.

This program when called will align the two selections, optimally, convert the proteins in the selection to ribbons and change the color of the selections to show the matched alignments.

'''WHAT THIS DOESN'T DO''': This program does NOT provide a pairwise alignment of two structures from scratch.  You have to tell it what the equivalent items are.  See [[Cealign]].

'''NOTE:''' This has '''NOT''' been tested on any other machine than mine, by me.  It works on all PyMols 0.97 and newer (haven't tested earlier versions) and I use Python 2.3's Numeric Version 23.3.

'''NOTE:''' I have added new Kabsch code.  The new code uses SVD, and fixed an old bug.  For ease of use, try the new code (requires numpy, though).