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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: J Struct Biol. 2011 May 17;175(3):288–299. doi: 10.1016/j.jsb.2011.05.011

Figure 4.

Figure 4

Coefficient histograms with no missing data. (a),(b): SNR=∞. (c), (d): SNR=0.05. In (a) and (b), discrete peaks correspond to individual classes. In (c) and (d), the 3 peaks in the left panel correspond to classes 1, 3+4 (combined), and 2. Subsequent coefficients provide further resolution.