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Figure 3
Standard deviation of r.m.s. density as a function of mean phase error in the structure factors used to calculate the map. Amplitudes and phases of structure factors were calculated as in Fig. 1[link]. Electron-density maps were calculated from these amplitudes and phases after adding random errors to the phases. (a) The standard deviation of r.m.s. density is plotted as a function of the mean phase error using box sizes of 3, 5 and 9 grid units on a side for maps calculated at a resolution of 2.5 Å. (b) The standard deviation of r.m.s. density is plotted as a function of the mean phase error using box size of 5 grid units on a side for maps calculated at resolutions of 2.5, 3.0 and 4.0 Å.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 55| Part 2| February 1999| Pages 501-505
doi:10.1107/S0907444998012657
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