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回帰分析とは?

Last updated at Posted at 2024-05-21

以下の二つあります
⚫️単回帰分析
⚫️重回帰分析

単回帰分析は、y=a+bxで表せられて、yが被説明変数、xが説明変数です。
例えば、yは売り上げ、xが広告費って考えるとわかりやすいかもしれないです。

重回帰分析は、y=a+b1x1+b2x2+•••bnxn
で表します。説明変数がたくさんです。複雑な予測ができますね。

このあたり、python等使用すればaやbは簡単に計算できるはずなので、まとめる予定です。

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