version 1.6.1
- fixed issue with hierarchical model for beta delta function
- entirely not sure about the priors being used here. They were taken from Table 2 of Franck et al (2014) but these are very very precise for general use as priors. Users should do their own investigation with using less informative priors.
Reference
Franck, C. T., Koffarnus, M. N., House, L. L., & Bickel, W. K. (2014). Accurate characterization of delay discounting: A multiple model approach using approximate bayesian model selection and a unified discounting measure. Journal of the Experimental Analysis of Behavior, 103(1), 218–233. http://doi.org/10.1002/jeab.128