ordervar: Reorder variables

In R4VN: Health Data Analysis and Publication-Ready Reporting

Reorder variables

Description

Reorders variables in an explicit data frame or the active R4VN data frame.

Usage

ordervar(..., data = NULL, before = NULL, after = NULL, last = FALSE)

Arguments

...	Variables to move. For backward compatibility, an explicit data frame may be the first unnamed argument.
data	Optional explicit data frame object.
before	Optional anchor variable.
after	Optional anchor variable.
last	Logical; move variables to the end.

Value

The edited data frame invisibly.

Examples

d <- data.frame(age = 1, sex = 2, id = 3, bmi = 4)
usedf(d, quiet = TRUE)
ordervar(id, sex)
ordervar(bmi, after = age)

# Extended usage examples

d <- data.frame(age = 1, sex = 2, id = 3, bmi = 4, outcome = 5)

# Move variables to the beginning
d1 <- d; ordervar(d1, id, outcome)

# Move before or after an anchor
d2 <- d; ordervar(d2, outcome, before = age)
d3 <- d; ordervar(d3, bmi, after = age)

# Move to the end
d4 <- d; ordervar(d4, id, last = TRUE)

# Use a range or wildcard
d5 <- data.frame(id = 1, q1 = 2, q2 = 3, q3 = 4, age = 5)
ordervar(d5, q1:q3, last = TRUE)

# Active-data syntax
usedf(d, quiet = TRUE); ordervar(id, outcome)

R4VN documentation built on Sept. 30, 2026, 5:13 p.m.