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82 bytes added, 17:54, 17 February 2008
Relation between R and R<sub>free</sub> as a function of resolution
* Tickle IJ, Laskowski RA and Moss DS. Rfree and the Rfree ratio. II. Calculation of the expected values and variances of cross-validation statistics in macromolecular least-squares refinement. Acta Cryst. (2000). D56, 442-450 [http://dx.doi.org/10.1107/S0907444999016868]
* GJ Kleywegt and TA Jones (2002). Homo Crystallographicus - Quo vadis? Structure 10, 465-472. (reprint from http://xray.bmc.uu.se/cgi-bin/gerard/reprint_mailer.pl?pref=65) - formula from that paper: R<sub>free</sub> = 1.065*R + 0.036 - plotwith empirical data: http://xray.bmc.uu.se/gerard/supmat/rfree2000/rfminusr_vs_resolution.gif
- many more plots: http://xray.bmc.uu.se/gerard/supmat/rfree2000