column_freq

A list of column names that need to be counted.

namelist

If TRUE, the output will keep the unique ID for the column combination.

keepID

Calculate the combination frequency of several columns in a data frame.

A system to simulate clinical trials with time to event endpoints. Event simulation is based on Cox models allowing for covariates in addition to the treatment or group factor. Specific drop-out rates (separate from administrative censoring) can be controlled in the simulation. Other features include stratified randomization, non-proportional hazards, different accrual patterns, and event projection (timing to reach the target event) based on interim data.

Bo Zhang

column_freq: Calculate the Combination Frequency of Several Columns within a Data Frame

Description

Usage

Arguments