var2fct: Convert vector to factor based on threshold of number of...

In REDCapCAST: REDCap Metadata Casting and Castellated Data Handling

Convert vector to factor based on threshold of number of unique levels

Description

This is a wrapper of forcats::as_factor, which sorts numeric vectors before factoring, but levels character vectors in order of appearance.

Usage

var2fct(data, unique.n)

Arguments

data	vector or data.frame column
unique.n	threshold to convert class to factor

Value

vector

Examples

sample(seq_len(4), 20, TRUE) |>
  var2fct(6) |>
  summary()
sample(letters, 20) |>
  var2fct(6) |>
  summary()
sample(letters[1:4], 20, TRUE) |> var2fct(6)

REDCapCAST documentation built on April 4, 2025, 3:18 a.m.