露露 asked in 科學其他:科學 · 1 decade ago

請問多變量回歸中的 residual

請問multiple linear regression 中的 residual 的意義及用途是什麼?

謝謝,痛苦的統計課。

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  • 1 decade ago
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    預測值 Y_hat 和實際值 Y 的差異

    通常是拿來評估 model diagnostic 的重要工具

    Source(s): me
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