fctcount
fctcount is a function from the R package forcats, part of the tidyverse ecosystem. It is used to determine the number of levels in a factor. Factors in R are categorical variables that have a fixed set of levels, which can be ordered or unordered. The fctcount function returns an integer representing the count of distinct levels in the input factor.
The function signature is fctcount(x, levels_only = FALSE). The first argument, x, must be a factor or
When applied to a factor with levels “a”, “b”, “c”, fctcount returns 3. If the factor has
fctcount is particularly useful in data manipulation pipelines. For example, when using dplyr to group by a
The function is implemented in pure R and has no external dependencies beyond forcats. It adheres to
Overall, fctcount provides a quick, reliable way to quantify the categorical breadth of a variable, which is