pltprior: A function to visualize the shape of the prior on the weights with the chosen q and s parameters.
Description
This function helps visualize the effect of the parameters q and s on the prior distribution used on the weights.
Usage
pltprior(q, s)
Arguments
q
One of the two parameters used to determine the prior on the weights.
s
The second of two parameters used to determine the prior on the weights.
Value
A 3D plot of the value of the prior taking into consideration only two weights
Details
The prior assumed on the weights in the objective function takes on the following formulation:
$$[L_q(\beta; q, s)= \frac{\frac{{q^{(q-1)}} {q}} {2s\Gamma(\frac{{1}{q}})}} exp(\frac{{-1}{qs^q}} |\emph{weights}|^q)$$
References
Mazur J., et al. Reconstructing nonlinear dynamic models of gene regulation using stochastic sampling. BMC Bioinformatics 2009;10;448