Log Rank Power

Log rank power calculator is a shiny app for calculating power based on simulation of a log rank test for two groups. It also generates a report so clinicians could easily incorporate it into a clinical trial protocol.

• Inputs
  • Median survival time (months) for treatment group
  • Median survival time (months) for the control group
  • The number of simulations
  • Size of treatment group
  • Size of control group
  • Accrual time (months)
  • Follow up time (months)
  • Confidence level (95% or 90%)

Installation

Simply run the following from an R console:

if (!require("devtools"))
  install.packages("devtools")
devtools::install_github("dungtsa/StatisticalClinicalSignificance",force = TRUE)

Getting Started

require("LongRankPower")
Log_Rank_Power()

Snapshot of shiny app: initial