view article
Figure 5
Plots of R factors (with kisotropic = 0.0961) and the LS function (with kisotropic = 0.0863) for PDB entry 1kwn (left) and R factors (with kisotropic = 0.0131) and the LS function (with kisotropic = 0.0151) for PDB entry 1hqw (right), illustrating that the minima of the R-factor function (46)[link] and the LS function (22)[link] can be at significantly different locations in parameter space. In such cases, a line search around the value of kmask obtained by minimization of the LS function is necessary in order to obtain a value that minimizes the R factor. For plotting purposes, the values of the LS function were scaled to be similar to the R factors.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 69| Part 4| March 2013| Pages 625-634
doi:10.1107/S0907444913000462
Follow Acta Cryst. D
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS