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デモ ヘルプ APIリファレンス デザイナ
ダウンロード
(Showing Draft Content)

INTERCEPT

既存のx値とy値を使用して得た回帰直線がy軸と交わる点の座標（切片）を求めます。

書式

INTERCEPT( dependent , independent )

引数

有効な引数は次のとおりです。

引数

説明

dependent

既知の従属値の配列（y）

independent

既知の独立値の配列（x）

各引数には数値、配列、または参照を指定できます。

解説

切片の算出には、既知のx値およびy値から得られる最適な回帰直線が使用されます。 切片は、独立変数が0であるときに従属変数の値を求める場合に使用します。 この関数を使用すると、たとえば室温およびそれ以上の環境で計測したデータ点がある場合、0度での金属の電気抵抗を予測できます。

引数として指定した配列または参照に文字列、論理値、または空白セルが含まれると、これらの値は無視されます。ただし、値が0のセルは計算対象となります。

従属変数の個数は、独立変数の個数と同じである必要があります。

この関数は次のように計算されます。

INTERCEPTの数式

Yは従属変数配列、Xは独立変数配列を表し、nは配列のサイズを表します。

データ型

両引数に対して数値配列を受け取り、 数値データを返します。

サンプル

INTERCEPT(G1:G9,F1:F9)

INTERCEPT(R1C7:R9C7,R1C6:R9C6)

INTERCEPT({53000,57000,58000,69000,74500,55620,80000, 68700},{35,31,47,51,37,31,58,39}) 結果： 37060.4809987149