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Add docs and update actions (#127)
* Add dependabot.yml * Separate docs workflow into separate file * Add docs env * Ignore docs build files * Create docs folder structure * Activate docs workflow * Update codecov action version * Add compat for Documenter.jl * Allow docs push preview (for PRs)
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‎.github/dependabot.yml

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# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
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version: 2
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updates:
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- package-ecosystem: "github-actions"
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directory: "/" # Location of package manifests
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schedule:
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interval: "weekly"

‎.github/workflows/CI.yml

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name: CI
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on:
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pull_request:
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branches:
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- master
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branches: [master]
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push:
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branches:
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- master
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branches: [master]
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tags: '*'
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jobs:
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test:
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arch:
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- x64
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- uses: julia-actions/setup-julia@latest
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with:
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version: ${{ matrix.version }}
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- uses: julia-actions/julia-buildpkg@latest
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- uses: julia-actions/julia-runtest@latest
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- uses: julia-actions/julia-processcoverage@latest
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- uses: codecov/codecov-action@v3
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- uses: codecov/codecov-action@v5
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with:
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file: lcov.info
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# docs:
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# name: Documentation
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# runs-on: ubuntu-latest
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# steps:
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# - uses: actions/checkout@v2
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# - uses: julia-actions/setup-julia@v1
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# with:
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# version: '1'
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# - run: |
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# julia --project=docs -e '
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# using Pkg
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# Pkg.develop(PackageSpec(path=pwd()))
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# Pkg.instantiate()'
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# - run: |
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# julia --project=docs -e '
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# using Documenter: doctest
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# using MYPACKAGE
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# doctest(MYPACKAGE)' # change MYPACKAGE to the name of your package
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# - run: julia --project=docs docs/make.jl
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# env:
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# GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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# DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}
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files: lcov.info
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token: ${{ secrets.CODECOV_TOKEN }}

‎.github/workflows/docs.yml

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name: Documentation
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on:
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pull_request:
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branches: [master]
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push:
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branches: [master]
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tags: '*'
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jobs:
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documenter:
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name: Build Documentation
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: julia-actions/setup-julia@v2
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with:
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version: '1'
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- uses: julia-actions/cache@v2
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- uses: julia-actions/julia-docdeploy@v1
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

‎.gitignore

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examples/.ipynb_checkpoints/*
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Manifest.toml
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Manifest.toml
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docs/build/

‎docs/Project.toml

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[deps]
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Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
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KernelDensity = "5ab0869b-81aa-558d-bb23-cbf5423bbe9b"
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[compat]
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Documenter = "1"
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[sources.KernelDensity]
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path = ".."

‎docs/make.jl

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using Documenter
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using KernelDensity
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makedocs(
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sitename = "KernelDensity.jl",
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modules = [KernelDensity],
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)
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deploydocs(
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repo = "github.com/JuliaStats/KernelDensity.jl.git",
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push_preview = true,
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)

‎docs/src/index.md

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```@meta
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CurrentModule = KernelDensity
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```
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# KernelDensity.jl
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Kernel density estimators for Julia.
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## Usage
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### Univariate
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The main accessor function is `kde`:
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```julia
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U = kde(data)
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```
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will construct a `UnivariateKDE` object from the real vector `data`. The
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optional keyword arguments are
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* `boundary`: the lower and upper limits of the kde as a tuple. Due to the
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fourier transforms used internally, there should be sufficient spacing to
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prevent wrap-around at the boundaries.
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* `npoints`: the number of interpolation points to use. The function uses
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fast Fourier transforms (FFTs) internally, so for optimal efficiency this
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should be a power of 2 (default = 2048).
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* `kernel`: the distributional family from
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[Distributions.jl](https://github.com/JuliaStats/Distributions.jl) to use as
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the kernel (default = `Normal`). To add your own kernel, extend the internal
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`kernel_dist` function.
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* `bandwidth`: the bandwidth of the kernel. Default is to use Silverman's
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rule.
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The `UnivariateKDE` object `U` contains gridded coordinates (`U.x`) and the density
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estimate (`U.density`). These are typically sufficient for plotting.
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A related function
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``` kde_lscv(data) ```
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will construct a `UnivariateKDE` object, with the bandwidth selected by
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least-squares cross validation. It accepts the above keyword arguments, except
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`bandwidth`.
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There are also some slightly more advanced interfaces:
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```julia
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kde(data, midpoints::R) where R<:AbstractRange
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```
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allows specifying the internal grid to use. Optional keyword arguments are
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`kernel` and `bandwidth`.
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```julia
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kde(data, dist::Distribution)
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```
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allows specifying the exact distribution to use as the kernel. Optional
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keyword arguments are `boundary` and `npoints`.
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```julia
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kde(data, midpoints::R, dist::Distribution) where R<:AbstractRange
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```
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allows specifying both the distribution and grid.
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### Bivariate
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The usage mirrors that of the univariate case, except that `data` is now
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either a tuple of vectors
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```julia
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B = kde((xdata, ydata))
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```
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or a matrix with two columns
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```julia
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B = kde(datamatrix)
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```
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Similarly, the optional arguments all now take tuple arguments:
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e.g. `boundary` now takes a tuple of tuples `((xlo,xhi),(ylo,yhi))`.
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The `BivariateKDE` object `B` contains gridded coordinates (`B.x` and `B.y`) and the bivariate density
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estimate (`B.density`).
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### Interpolation
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The KDE objects are stored as gridded density values, with attached
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coordinates. These are typically sufficient for plotting (see above), but
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intermediate values can be interpolated using the
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[Interpolations.jl](https://github.com/tlycken/Interpolations.jl) package via the `pdf` method
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(extended from Distributions.jl).
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```julia
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pdf(k::UnivariateKDE, x)
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pdf(k::BivariateKDE, x, y)
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```
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where `x` and `y` are real numbers or arrays.
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If you are making multiple calls to `pdf`, it will be more efficient to
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construct an intermediate `InterpKDE` to store the interpolation structure:
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```julia
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ik = InterpKDE(k)
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pdf(ik, x)
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```
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`InterpKDE` will pass any extra arguments to `interpolate`.
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## API Reference
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```@autodocs
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Modules = [KernelDensity]
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```

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