送交者: lala 于 February 15, 2002 16:02:32:
回答: 给加拿大哥(CANADAGE): Descriptive Methods for Assessing Normality 由 lala 于 February 14, 2002 21:27:37:
CANADAGE（加拿大大哥），不知你对我的回答满意么？
如果你做了变换， 即 z = (x - m)/s，你的NORMAL_PROBABILITY_PLOT
曲线应该落在45度角的直线上．如果仍然是近似直线，但不是落在45度角
的直线，例如有75度，那就说明你的数据有几个OUTLIERS影响你的
NORMAL_PROBABILITY_PLOT曲线．In a right-skewed distribution, the
largest observations fall distinctly to the right of a line drawn through the main
body of points. In a left-skewed distribution, the smallest observations fall distinctly
to the left of a line drawn through the main body of points.
小弟水平有限，请不要见笑．