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failed to run `@example` block in source/validate.md:156-182 ```@example using Plots, Clustering X = hcat([4., 5.] .+ 0.4 * randn(2, 10), [9., -5.] .+ 0.4 * randn(2, 5), [-4., -9.] .+ 1 * randn(2, 5)) clusterings = kmeans.(Ref(X), 2:5) hard_indices = [:silhouettes, :calinski_harabasz, :xie_beni, :davies_bouldin, :dunn] kmeans_quality = Dict(qidx => clustering_quality.(Ref(X), clusterings, quality_index = qidx) for qidx in hard_indices ) p = [ plot(2:5, kmeans_quality[qidx], marker = :circle, title = string.(qidx), label = nothing, ) for qidx in hard_indices ] plot(p..., layout = (3,2), plot_title = "Quality indices for various number of clusters" ) ``` exception = MethodError: no method matching eachcol(::typeof(StatsAPI.weights)) Closest candidates are: eachcol(!Matched::AbstractMatrix) @ Base slicearray.jl:203 eachcol(!Matched::AbstractVector) @ Base slicearray.jl:204 eachcol(!Matched::DataFrames.AbstractDataFrame) @ DataFrames ~/.julia/packages/DataFrames/58MUJ/src/abstractdataframe/iteration.jl:238 Stacktrace: [1] _cluquality_calinski_harabasz(metric::Distances.SqEuclidean, data::Matrix{Float64}, centers::Matrix{Float64}, assignments::Vector{Int64}, fuzziness::Nothing) @ Clustering ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:234 [2] clustering_quality(data::Matrix{Float64}, centers::Matrix{Float64}, assignments::Vector{Int64}; quality_index::Symbol, metric::Distances.SqEuclidean) @ Clustering ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:76 [3] clustering_quality @ ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:54 [inlined] [4] #clustering_quality#40 @ ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:90 [inlined] [5] clustering_quality @ ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:90 [inlined] [6] #43 @ ./broadcast.jl:1297 [inlined] [7] _broadcast_getindex_evalf @ ./broadcast.jl:683 [inlined] [8] _broadcast_getindex @ ./broadcast.jl:656 [inlined] [9] getindex @ ./broadcast.jl:610 [inlined] [10] copy @ ./broadcast.jl:912 [inlined] [11] materialize(bc::Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, Base.Broadcast.var"#43#44"{Base.Pairs{Symbol, Symbol, Tuple{Symbol}, NamedTuple{(:quality_index,), Tuple{Symbol}}}, typeof(clustering_quality)}, Tuple{Base.RefValue{Matrix{Float64}}, Vector{KmeansResult{Matrix{Float64}, Float64, Int64}}}}) @ Base.Broadcast ./broadcast.jl:873 [12] (::Main.__atexample__300.var"#1#2")(qidx::Symbol) @ Main.__atexample__300 ./none:0 [13] iterate @ ./generator.jl:47 [inlined] [14] _all(f::Base.var"#372#374", itr::Base.Generator{Vector{Symbol}, Main.__atexample__300.var"#1#2"}, #unused#::Colon) @ Base ./reduce.jl:1292 [15] all @ ./reduce.jl:1278 [inlined] [16] Dict(kv::Base.Generator{Vector{Symbol}, Main.__atexample__300.var"#1#2"}) @ Base ./dict.jl:111 [17] top-level scope @ validate.md:165 [18] eval @ ./boot.jl:370 [inlined] [19] #54 @ ~/.julia/packages/Documenter/nQAq5/src/expander_pipeline.jl:738 [inlined] [20] cd(f::Documenter.var"#54#56"{Module, Expr}, dir::String) @ Base.Filesystem ./file.jl:112 [21] (::Documenter.var"#53#55"{Documenter.Page, Module, Expr})() @ Documenter ~/.julia/packages/Documenter/nQAq5/src/expander_pipeline.jl:737 [22] (::IOCapture.var"#3#5"{DataType, Documenter.var"#53#55"{Documenter.Page, Module, Expr}, Task, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}})() @ IOCapture ~/.julia/packages/IOCapture/8Uj7o/src/IOCapture.jl:119 [23] with_logstate(f::Function, logstate::Any) @ Base.CoreLogging ./logging.jl:514 [24] with_logger @ ./logging.j

failed to run `@example` block in source/validate.md:185-213 ```@example using Plots, Clustering X = hcat([4., 5.] .+ 0.4 * randn(2, 10), [9., -5.] .+ 0.4 * randn(2, 5), [-4., -9.] .+ 1 * randn(2, 5)) fuzziness = 2 fuzzy_indices = [:calinski_harabasz, :xie_beni] fuzzy_clusterings = fuzzy_cmeans.(Ref(X), 2:5, fuzziness) fuzzy_cmeans_quality = Dict(qidx => clustering_quality.(Ref(X), fuzzy_clusterings, fuzziness = fuzziness, quality_index = qidx) for qidx in fuzzy_indices ) p = [ plot(2:5, fuzzy_cmeans_quality[qidx], marker = :circle, title = string.(qidx), label = nothing, ) for qidx in fuzzy_indices ] plot(p..., layout = (2,1), plot_title = "Quality indices for various number of clusters" ) ``` exception = MethodError: no method matching eachcol(::typeof(StatsAPI.weights)) Closest candidates are: eachcol(!Matched::AbstractMatrix) @ Base slicearray.jl:203 eachcol(!Matched::AbstractVector) @ Base slicearray.jl:204 eachcol(!Matched::DataFrames.AbstractDataFrame) @ DataFrames ~/.julia/packages/DataFrames/58MUJ/src/abstractdataframe/iteration.jl:238 Stacktrace: [1] _cluquality_calinski_harabasz(metric::Distances.SqEuclidean, data::Matrix{Float64}, centers::Matrix{Float64}, assignments::Matrix{Float64}, fuzziness::Int64) @ Clustering ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:234 [2] clustering_quality(data::Matrix{Float64}, centers::Matrix{Float64}, weights::Matrix{Float64}; quality_index::Symbol, fuzziness::Int64, metric::Distances.SqEuclidean) @ Clustering ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:118 [3] clustering_quality(data::Matrix{Float64}, R::FuzzyCMeansResult{Float64}; quality_index::Symbol, fuzziness::Int64, metric::Distances.SqEuclidean) @ Clustering ~/work/Clustering.jl/Clustering.jl/src/clustering_quality.jl:126 [4] (::Base.Broadcast.var"#43#44"{Base.Pairs{Symbol, Any, Tuple{Symbol, Symbol}, NamedTuple{(:fuzziness, :quality_index), Tuple{Int64, Symbol}}}, typeof(clustering_quality)})(::Matrix{Float64}, ::Vararg{Any}) @ Base.Broadcast ./broadcast.jl:1297 [5] _broadcast_getindex_evalf @ ./broadcast.jl:683 [inlined] [6] _broadcast_getindex @ ./broadcast.jl:656 [inlined] [7] getindex @ ./broadcast.jl:610 [inlined] [8] copy @ ./broadcast.jl:912 [inlined] [9] materialize(bc::Base.Broadcast.Broadcasted{Base.Broadcast.DefaultArrayStyle{1}, Nothing, Base.Broadcast.var"#43#44"{Base.Pairs{Symbol, Any, Tuple{Symbol, Symbol}, NamedTuple{(:fuzziness, :quality_index), Tuple{Int64, Symbol}}}, typeof(clustering_quality)}, Tuple{Base.RefValue{Matrix{Float64}}, Vector{FuzzyCMeansResult{Float64}}}}) @ Base.Broadcast ./broadcast.jl:873 [10] (::Main.__atexample__301.var"#1#2")(qidx::Symbol) @ Main.__atexample__301 ./none:0 [11] iterate @ ./generator.jl:47 [inlined] [12] _all(f::Base.var"#372#374", itr::Base.Generator{Vector{Symbol}, Main.__atexample__301.var"#1#2"}, #unused#::Colon) @ Base ./reduce.jl:1282 [13] all @ ./reduce.jl:1278 [inlined] [14] Dict(kv::Base.Generator{Vector{Symbol}, Main.__atexample__301.var"#1#2"}) @ Base ./dict.jl:111 [15] top-level scope @ validate.md:195 [16] eval @ ./boot.jl:370 [inlined] [17] #54 @ ~/.julia/packages/Documenter/nQAq5/src/expander_pipeline.jl:738 [inlined] [18] cd(f::Documenter.var"#54#56"{Module, Expr}, dir::String) @ Base.Filesystem ./file.jl:112 [19] (::Documenter.var"#53#55"{Documenter.Page, Module, Expr})() @ Documenter ~/.julia/packages/Documenter/nQAq5/src/expander_pipeline.jl:737 [20] (::IOCapture.var"#3#5"{DataType, Documenter.var"#53#55"{Documenter.Page, Module, Expr}, Task, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}, IOContext{Base.PipeEndpoint}})() @ IOCapture ~/.julia/packages/IOCapt