Ансамбль деревьев

function mse_evo(X, y, n_trees=200)
    X_df = DataFrame(X, :auto)
    y_vec = y
    model = EvoTreeRegressor(
        loss=:mse,
        nrounds=n_trees,
        nbins=50,
        eta=0.1,
        max_depth=6,
        min_weight=1.0
    )
    mach = machine(model, X_df, y_vec)
    fit!(mach)
    fitted_model = mach.fitresult
    if :importance in propertynames(fitted_model)
        importance = fitted_model.importance
        if sum(importance) > 0
            importance = importance / sum(importance)
        end
        return importance
    else
        return zeros(size(X, 2))
    end
end