積差相關是英國統計學家皮爾遜於20世紀初提出的一種計算相關的方法,因而被稱為皮爾遜積差相關,簡稱皮爾遜相關。積差相關又稱為積矩相關(product-moment coefficient of correlation)。通常,人們把離均差乘方之和除以N,用“積矩”概念表示。積差相關是一種運用較為普遍的計算相關係數的方法,也是揭示兩個變數線性相關方向和程度最常用和最基本的方法。
基本介紹
- 中文名:皮爾遜相關
- 外文名:product-moment coefficient of correlation
- 別稱:皮爾遜積差相關,積差相關
- 提出者: 皮爾遜
- 提出時間:20世紀初
- 套用學科:心理學
- 適用領域範圍:統計學
- 適用領域範圍:統計學
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