v1.0.1

CategoricalArrays v1.0.1

Diff since v1.0.0

Fix Array{<:CategoricalValue} constructors and convert to return an Array rather than a CategoricalArray.

Merged pull requests:

• Fix Array{<:CategoricalValue} constructors and convert (#427) (@nalimilan)

v1.0.0

CategoricalArrays v1.0.0

Diff since v0.10.8

Breaking changes

• unique(::CategoricalArray) and levels(::CategoricalArray) return a CategoricalArray instead of unwrapping values, consistent with unique(::AbstractArray) in Base and levels(::AbstractArray) in DataAPI (#358, #425).

• cut always closes the last interval on the right (#409).

• cut(x, breaks) rounds breaks to generate shorter labels (#422).

• cut(x, ngroups) takes breaks from actual values instead of using quantile estimates which are generally longer (#416). This only changes group labels, not their contents.

• T(::CategoricalArray{U}) and convert(T, ::CategoricalArray{U}) now consistently return an Array{U} for T in Array, Vector, Matrix. This avoids creating Array{<:CategoricalValue} objects unless explicitly requested (#420).

• All deprecations have been removed
  (#419).

New features

• Support reading from and writing to Arrow files (#415).

• Improve performance of recode (#407).

• Support weighted quantiles in cut (#423).

Bug fixes

• Fix performance regression on Julia 1.11 and above (#418).

• Fix cut corner cases with duplicated breaks (#410).

Merged pull requests:

• fix unique() behaviour, add unique!() (#358) (@alyst)
• make recode! type stable (#407) (@tiemvanderdeure)
• remove JET runtime dispatch error (#408) (@matthijscox-asml)
• Make cut close last interval on the right (#409) (@nalimilan)
• Fix corner cases of cut with duplicated breaks (#410) (@nalimilan)
• CompatHelper: add new compat entry for Statistics at version 1, (keep existing compat) (#411) (@github-actions[bot])
• Bump julia-actions/setup-julia from 1 to 2 (#413) (@dependabot[bot])
• Bump actions/cache from 2 to 4 (#414) (@dependabot[bot])
• Support reading from and writing to Arrow files (#415) (@nalimilan)
• Choose different quantile cutpoints in cut(x, n) (#416) (@nalimilan)
• Fix allocations by dropping CategoricalPool type parameter (#418) (@nalimilan)
• Remove deprecations (#419) (@nalimilan)
• Add Array constructors and convert methods (#420) (@nalimilan)
• Simplify default cut labels (#422) (@nalimilan)
• Support weighted quantiles in cut (#423) (@nalimilan)
• Fix CI (#424) (@andreasnoack)
• Make levels return a CategoricalArray (#425) (@nalimilan)
• Release version 1.0 (#426) (@nalimilan)

Closed issues:

• Fix showcompact() (#40)
• Move CategoricalValue and CategoricalPool into separate package (#64)
• Implement optimized == and isequal() for arrays with different pools (#82)
• == for CategoricalPool (#108)
• Implement deleteat! method (#115)
• Adding levels to ordered categorical array (#141)
• cut combined with labels and extend throws ArgumentError (#160)
• missing append!(::CategoricalArray, ::SubArray{<:CategoricalArray}) (#170)
• maximum/minimum over dimension fails (#178)
• Extreme slowdown in IndexedTable creation with CategoricalArrays (#272)
• Missing CategoricalArray{String}(::SentinelArrays.ChainedVector, ::CategoricalPool) (#285)
• Add Vector conversion (#294)
• Can't precompile on Julia v1.5.2 (#304)
• another take at cut (#314)
• How to check if an array contains categorical values? (#332)
• CategoricalArray creation (#333)
• Plotting categorical values as colors (#351)
• unique() returns levels, not the CategoricalArray (#357)
• How to compare to value? (#363)
• Make last interval closed in cut (#373)
• Compact printing in cut (#381)
• Strange cut for imbalanced distributions (#382)
• Add promotion rules for CategoricalArrays and views of CategoricalArrays (#386)
• Consider adding RecipesBase as a direct dependency (#388)
• Make levels return a CategoricalArray (#390)
• ordered vs ordinal (#398)
• Define value(x) alternative to DataAPI.unwrap(x) (#399)
• docstring/repl issue in package development (#403)
• CategoricalValue allocates on julia 1.11 (#412)
• Request to become an active maintainer (#417)

v0.10.8

CategoricalArrays v0.10.8

Diff since v0.10.7

Closed issues:

• Crash when calling cut function (#289)

Merged pull requests:

• move requires usage to extension (#400) (@KristofferC)

v0.10.7

CategoricalArrays v0.10.7

Diff since v0.10.6

Closed issues:

• Error with constructor after Tables 1.8 (#395)

Merged pull requests:

• Implement skipmissing argument to levels (#391) (@nalimilan)
• Drop redundant convert(Union{T, Missing/Nothing}, x) methods (#396) (@nalimilan)

v0.10.6

CategoricalArrays v0.10.6

Diff since v0.10.5

Closed issues:

• Problem with unstack from DataFrames.jl on CategoricalVector (#380)

Merged pull requests:

• Allow strings and numbers as labels in cut (#393) (@skleinbo)

v0.10.5

CategoricalArrays v0.10.5

Diff since v0.10.4

Merged pull requests:

• Improve array promotion rules (#387) (@nalimilan)

v0.10.4

CategoricalArrays v0.10.4

Diff since v0.10.3

Closed issues:

• Conversion issue on nightly (#383)

Merged pull requests:

• Implement promotion rules for CategoricalArray (#384) (@nalimilan)
• Fix tests on Julia 1.9 nightlies (#385) (@nalimilan)

v0.10.3

CategoricalArrays v0.10.3

Diff since v0.10.2

Closed issues:

• Rename get for categorical values? (#142)
• add future to require (#149)
• add insert! support (#375)
• cut: option to have missing as level (#377)
• Can't precompile on Windows (#379)

Merged pull requests:

• add insert! (#376) (@bkamins)
• Document how to turn missing values into normal values (#378) (@nalimilan)

v0.10.2

CategoricalArrays v0.10.2

Diff since v0.10.1

Closed issues:

• Prettier IO methods for CategoricalValue (#370)

Merged pull requests:

• Support any AbstractVectors in levels! and CategoricalPool (#365) (@nalimilan)
• Do not print type information when :compact=>true (#371) (@nalimilan)
• Improve cut docstring (#372) (@nalimilan)

v0.10.1

CategoricalArrays v0.10.1

Diff since v0.10.0

Closed issues:

• recode can be too slow (#343)
• Request to implement refcode in a 0.9.* patch. (#347)
• Add sizehint! (#350)
• GitHub release notes for 0.10.0 appear to be missing (#356)
• Trouble with categorical(v) when v is a SentinelArrays.ChainedVector (#361)

Merged pull requests:

• Optimize recode for the large number of categories when the categories to be recoded are specified as arrays (#345) (@pgagarinov)
• Add refcode, deprecate level (#348) (@nalimilan)
• add sizehint! (#353) (@bkamins)
• droplevels!(): more efficient implementation (#359) (@alyst)
• levels!(): enhance performance (#360) (@alyst)
• Fix type in error message (#366) (@nalimilan)
• Fix doctests and make checks stricter (#367) (@nalimilan)
• Fix ambiguity error on construction from ChainedVector (#369) (@nalimilan)