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 Results for DC.creator="D." AND DC.creator="W." AND DC.creator="J." AND DC.creator="Cruickshank" in section 18.5.6 of volume F
Position error
Cruickshank, D. W. J.  International Tables for Crystallography (2012). Vol. F, Section 18.5.6.4, p. 507 [ doi:10.1107/97809553602060000859 ]
Position error 18.5.6.4. Position error Often an estimate of a position error , rather than a coordinate error , is required. In the isotropic approximation, Consequently, the DPI formulae for the position errors are with R and with . References International Tables for Crystallography (2012). Vol. F, ch. 18.5, p. 507 International ...

Extension for low-resolution structures and use of Rfree
Cruickshank, D. W. J.  International Tables for Crystallography (2012). Vol. F, Section 18.5.6.3, pp. 506-507 [ doi:10.1107/97809553602060000859 ]
... determine the structure? By following the line of argument of Cruickshank's (1960) analysis, (18.5.6.6) is a rough estimate of the ... the accuracy of crystal structures. Nature (London), 355, 472-475. Cruickshank, D. W. J. (1960). The required precision of intensity ...

A simple error formula
Cruickshank, D. W. J.  International Tables for Crystallography (2012). Vol. F, Section 18.5.6.2, p. 506 [ doi:10.1107/97809553602060000859 ]
A simple error formula 18.5.6.2. A simple error formula Cruickshank (1960) offered a simple order-of-magnitude formula for in ... none of the restraint data. References Allen, F. H., Cole, J. C. & Howard, J. A. K. (1995a). A systematic study of coordinate ...

Statistical expectation of error dependence
Cruickshank, D. W. J.  International Tables for Crystallography (2012). Vol. F, Section 18.5.6.1, p. 506 [ doi:10.1107/97809553602060000859 ]
Statistical expectation of error dependence 18.5.6.1. Statistical expectation of error dependence From general statistical theory, one would expect the s.u. of an atomic coordinate determined from the diffraction data alone to show dependence on four factors: Here, is some measure of the precision of the data; is the recognition that the ...

The diffraction-component precision index
Cruickshank, D. W. J.  International Tables for Crystallography (2012). Vol. F, Section 18.5.6, pp. 506-507 [ doi:10.1107/97809553602060000859 ]
... correspondence to these four factors. 18.5.6.2. A simple error formula | | Cruickshank (1960) offered a simple order-of-magnitude formula for in ... determine the structure? By following the line of argument of Cruickshank's (1960) analysis, (18.5.6.6) is a rough estimate of the ... with R and with . References Allen, F. H., Cole, J. C. & Howard, J. A. K. (1995a). A systematic ...

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