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. Author manuscript; available in PMC: 2009 Jan 12.
Published in final edited form as: J Comput Chem. 2008 Jul 30;29(10):1605–1614. doi: 10.1002/jcc.20919

FIG. 3.

FIG. 3

Sample two-dimensional distributions of the dihedral angles of R,S-tartaric acid. (a) Dihedral angles φ3 and φ4, which have a low estimated coefficient of association, rI = [1 − e−2I(3,4)]1/2 = 0.0657; (b) dihedral angles φ3 and φ4 plotted as just a product of their marginal distributions; (c) dihedral angles φ4 and φ7, which have a relatively high estimated coefficient of association, rI = 0.5491; (d) dihedral angles φ4 and φ7 plotted as just a product of their marginal distributions. Shading ranges from white (zero probability density) to black (maximum probability density).