data_frame_from_2x2: create a data frame from a 2x2 matrix

In R4EPI/tuni: Tables for Epidemiological Analysis

create a data frame from a 2x2 matrix

Description

create a data frame from a 2x2 matrix

Usage

data_frame_from_2x2(x)

Arguments

x	a 2x2 matrix or 3D array with exposure variable in rows and outcome in columns

Value

a data frame with the important combinations:

• A_exp_cases

• B_exp_controls

• C_unexp_cases

• D_unexp_controls

• total_cases (A + B)

• total_controls (C + D)

• total_exposed (A + C)

• total_unexposed (B + D)

• total (A + B + C + D)

Examples

arr <- c(10, 35, 90, 465, 36, 25, 164, 175)
arr <- array(arr,
  dim = c(2, 2, 2),
  dimnames = list(
    risk = c(TRUE, FALSE),
    outcome = c(TRUE, FALSE),
    old = c(FALSE, TRUE)
  )
)
arr
data_frame_from_2x2(arr)

R4EPI/tuni documentation built on March 20, 2023, 4:37 p.m.