AddAISSeverityIndicator: Add AIS severity indicator

In martingerdin/bengaltiger: bengaltiger

Description

Adds a variable to the data that indicates if a patient has an abbreviated injury scale (AIS) severity above or equal to a certain cutoff in a certain body region.

Usage

AddAISSeverityIndicator(study.sample,
  severity.variable.name = "head_and_neck", cutoff = 2,
  levels = c("Yes", "No"),
  variable.name = paste0(severity.variable.name, "geq", cutoff),
  add.as.factor = TRUE, drop.used.variables = FALSE)

Arguments

study.sample	Data frame. The study sample. No default.
severity.variable.name	Character vector of length 1. The name of the variable with AIS severity data. Defaults to "head_and_neck".
cutoff	Numeric vector of length 1. The AIS severity cutoff. Has to be between 1 and 6. Defaults to 2.
levels	Character vector of length 2. The levels to use to encode the resulting indicator variable. The first item in the vector should be the level to be used to indicate that the patient had an injury of the specified severity. Defaults to c("Yes", "No").
variable.name	Character vector of length 1. The name of the resulting variable. Defaults to paste0(severity.variable.name, "geq", cutoff), where geq refers to the Latex command greater than or equal to.
add.as.factor	Logical vector of length 1. If TRUE the indicator variable is added to the study sample as a factor. If FALSE it is added as character. Defaults to TRUE.
drop.used.variables	Logical vector of length 1. If TRUE variables used to calculate the variable is dropped from the sample. Defaults to FALSE.

martingerdin/bengaltiger documentation built on Feb. 29, 2020, 4:46 p.m.