numeric_var: Numeric Variable

In variables: Variable Descriptions

Description

Formal description of numeric variable

Usage

numeric_var(name, desc = NULL, unit = NULL, support = c(0, 1), add = c(0, 0), 
            bounds = NULL, ...)

Arguments

name	character, the name of the variable
desc	character, a description of what is measured
unit	character, the measurement unit
support	the support of the measurements, see below
add	add these values to the support before generating a grid via mkgrid
bounds	an interval defining the bounds of a real sample space
...	ignored

Details

A numeric variable can be discrete (support is then the set of all possible values, either integer or double; integers of length 2 are interpreted as all integers inbetween) or continuous (support is a double of length 2 giving the support of the data).

If a continuous variable is bounded, bounds defines the corresponding interval.

Value

An object of class numeric\_var inheriting from var with corresponding methods.

Examples

  numeric_var("age", "age of patient", "years", support = 25:75)

  numeric_var("time", "survival time", "days", support = 0:365)

  numeric_var("time", "survival time", "days", support = c(0.0, 365), 
              bounds = c(0, Inf))

variables documentation built on June 17, 2021, 5:08 p.m.