SummarizeEventsPtBy: Summarize event counts and total person-time by groups.

In kaz-yos/distributed: Examine Privacy Preserving Data Analysis Methods in Simulated Distributed Data Network

Description

Summarize event counts and total person-time of survival outcome (coded 0 or 1) classified by a grouping variable. Intended for summarizing these counts by the binary treatment groups. When there are empty cells, the event counts and the total person-time are both forced to be zeros.

Usage

SummarizeEventsPtBy(event, time, by, data)

Arguments

event	variable name of a binary event indicator variable (coded 0 or 1) in the data frame.
time	variable name of a follow-up time variable in the data frame.
by	variable name of a categorical variable used as a grouping variable. This should usually be a factor if called in a stratified analysis to avoid differential lengths.
data	data frame containing these variables.

Value

data frame containing the events (event count) element the denom (person-time) information for each treatment group. When the data frame supplied is empty (0 rows), a single-row data frame filled with NA is returned.

Author(s)

Kazuki Yoshida

kaz-yos/distributed documentation built on May 27, 2019, 4:50 a.m.