Figure 3 - full size

 

Figure 3.
Fig. 3. Estimation of nuisance parameters. Posterior histograms compiled from MCMC samples for the scaling factor in the ISPA and for the width of the log normal error distribution. (A) Posterior histogram p( - |D,I) for the inverse sixth power of . This factor corrects interproton distances to match the experimental distances best. (B) Posterior histogram p( |D,I) for the error . In conventional approaches, this analog to the weight (w[data] -2) can only be estimated via cross-validation or must be set empirically.

The above figure is reprinted by permission from the AAAs: Science (2005, 309, 303-306) copyright 2005.