accrual.plots


The diagnostic panel shows four figures that help to understand the data distribution.
The figure on the top left is the exponential quantile plot, which checks whether the distribution of waiting times is exponential. 
The top right figure shows the histogram of the waiting times, with the red line is the theoretical exponential distribution.
The figure of waiting time verse cumulative accrual time is shown on the bottom left.
The figure of total accrual verse cumulative accrual time is shown on the bottom right. 

 diagnostic 

 exponetial 

Subject recruitment for medical research is challenging. Slow patient accrual leads to delay in research. Accrual monitoring during the process of recruitment is critical. Researchers need reliable tools to manage the accrual rate. We developed a Bayesian method that integrates researcher's experience on previous trials and data from the current study, providing reliable prediction on accrual rate for clinical studies. In this R package, we present functions for Bayesian accrual prediction which can be easily used by statisticians and clinical researchers.

accrual.plots: Dignostic Plots

Description

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Examples