This package provides tools for working with categorical variables, both with unordered (nominal variables) and ordered categories (ordinal variables). It provides a replacement for DataArrays.jl's
PooledDataArray type. Contrary to that type, it supports both non-nullable and nullable arrays (i.e. arrays allowing for missing data), using the
Null type. It is also based on a simpler design by only supporting categorical data, which allows offering more specialized features (like ordering of categories). See the IndirectArrays.jl package for a simpler array type storing data with a small number of values.
3 days ago