# Eunoia.EulerFit Julia · 1.0.1 [Source]() ```julia EulerFit{S} <: AbstractEulerFit{S} ``` ```julia EulerFit{S} ``` Result of fitting an area-proportional Euler diagram with shapes of type `S`. Fields: - `shapes`: fitted shapes, one per input set, in input order. - `original_values`: the requested exclusive area per region (keyed by combination string, e.g. `"A&B"`). - `fitted_values`: the fitted exclusive area per region. - `residuals`: `original_values − fitted_values` per region. - `region_error`: per-region error (always in exclusive form). - `diag_error`: eulerAPE-style worst-case region error. - `stress`: venneuler-style stress metric. - `loss`: final value of the optimizer's objective. - `iterations`: optimizer iteration count. - `container`: the fitted universe box when fit with a `complement`, else `nothing`. The `plot_data` field holds the native renderable geometry (region polygons and label anchors); it backs plotting and is not part of the stable public API. ## Fields ### `shapes::Vector{S}` [Source]() ### `original_values::Dict{String, Float64}` [Source]() ### `fitted_values::Dict{String, Float64}` [Source]() ### `residuals::Dict{String, Float64}` [Source]() ### `region_error::Dict{String, Float64}` [Source]() ### `diag_error::Float64` [Source]() ### `stress::Float64` [Source]() ### `loss::Float64` [Source]() ### `iterations::Int` [Source]() ### `container::Union{Container, Nothing}` [Source]() ### `plot_data::JSON3.Object` [Source]()