.lgamma_ratio

Calculate log gamma ratio for two different parameter values

Allows Bayesian borrowing from a historical dataset for time-to-
event data. A flexible baseline hazard function is achieved via a piecewise
exponential likelihood with time varying split points and smoothing prior on the
historic baseline hazards. The method is described in Scott and Lewin (2024)
<doi:10.48550/arXiv.2401.06082>, and the software paper is in Axillus et al.
(2024) <doi:10.48550/arXiv.2408.04327>.

Darren Scott

BayesFBHborrow

Bayesian Dynamic Borrowing with Flexible Baseline Hazard
Function

Sophia Axillus

.lgamma_ratio function

<dl><dt>x1</dt>
<dd>old parameter value</dd>
<dt>x2</dt>
<dd>proposed parameter value</dd>
<dt>shape</dt>
<dd>shape parameter</dd>
<dt>rate</dt>
<dd>rate parameter</dd></dl>

Arguments

Calculate log gamma ratio for two different parameter values — .lgamma_ratio

<dl>

<dt>x1</dt>
<dd>old parameter value</dd>


<dt>x2</dt>
<dd>proposed parameter value</dd>


<dt>shape</dt>
<dd>shape parameter</dd>


<dt>rate</dt>
<dd>rate parameter</dd>

</dl>

.lgamma_ratio: Calculate log gamma ratio for two different parameter values

Description

Usage

Value

Arguments