総計値をフォローすると、最も重要なデータを一目で確認できます。また、売上予測を有効にすると、総計値の予測パフォーマンスも確認できます。売上予測が有効になっている場合、Tableau Next は履歴データを使用して将来のトレンドを予測します。この売上予測は、Tableau Next が 95% の信頼性を維持できる将来まで延長されます。たとえば、前年のデータがない場合、Tableau Next は、高い精度で売上予測を行うのに十分な履歴データがないため、全期間の売上予測を提供しません。売上予測が有効になっている場合、総計値の履歴値は実線になり、売上予測値は破線に表示され、信頼範囲は折れ線の周囲の網掛け帯として表示されます。
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