rem mutable + add Ref(x)

Author: jaksle

.gitignore

@@ -1,2 +1,4 @@
 examples/.ipynb_checkpoints/*
-Manifest.toml
+Manifest.toml
+.vscode/settings.json
+tmp.jl

src/KernelDensity.jl

@@ -12,6 +12,8 @@ export kde, kde_lscv, UnivariateKDE, BivariateKDE, InterpKDE, pdf
 
 abstract type AbstractKDE end
 
+Base.broadcastable(x::AbstractKDE) = Ref(x)
+
 include("univariate.jl")
 include("bivariate.jl")
 include("interp.jl")

src/interp.jl

@@ -1,12 +1,11 @@
 import Interpolations: interpolate, scale
 
-mutable struct InterpKDE{K,I} <: AbstractKDE
+struct InterpKDE{K,I} <: AbstractKDE
     kde::K
     itp::I
     InterpKDE{K,I}(kde::K, itp::I) where {K,I} = new{K,I}(kde, itp)
 end
 
-
 function InterpKDE(kde::UnivariateKDE, opts...)
     itp_u = interpolate(kde.density, opts...)
     itp = scale(itp_u, kde.x)

src/univariate.jl

@@ -13,7 +13,7 @@ sum(density) * step(x) ≈ 1
 
 $(FIELDS)
 """
-mutable struct UnivariateKDE{R<:AbstractRange} <: AbstractKDE
+struct UnivariateKDE{R<:AbstractRange} <: AbstractKDE
     "Gridpoints for evaluating the density."
     x::R
     "Kernel density at corresponding gridpoints `x`."