prior = gammaPriorExpandParam(prior, params)

 [params, names] = gammaPriorExtractParam(prior)

 g = gammaPriorGradient(prior, x)

 l = gammaPriorLogProb(prior, x)

 prior = gammaPriorParamInit(prior)

 y = gaussianPrior(x, transform)

 prior = gaussianPriorExpandParam(prior, params)

 [params, names] = gaussianPriorExtractParam(prior)

 g = gaussianPriorGradient(prior, x)

 l = gaussianPriorLogProb(prior, x)

 prior = gaussianPriorParamInit(prior)

 prior = invgammaPriorExpandParam(prior, params)

 [params, names] = invgammaPriorExtractParam(prior)

 g = invgammaPriorGradient(prior, x)

 l = invgammaPriorLogProb(prior, x)

 prior = invgammaPriorParamInit(prior)

 prior = priorExpandParam(prior, params)

 [params, names] = priorExtractParam(prior)

 g = priorGradient(prior, params)

 l = priorLogProb(prior, x)

 prior = priorParamInit(prior)

 prior = priorTest(priorType);