正偏态(positive skewness)分布不对称为偏态。分布高峰偏左,长尾向右延伸的偏态分布称为正偏态,亦称右偏态。此时均数大于众数。
right),亦称正偏态( positive skewness),资料类型见第四章的图 4-3;峰偏右, 长尾向左侧拖尾,称为左偏态( skewed to the left),亦称负偏态( negative
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上述公式只能减轻或消除变量的正偏态(positive skewed),但如果不分青红皂白(即不仔细操作第一和第二步)地用于负偏态(negative skewed)的变量,则会使负偏态变得更加严重。
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关于第一部分,Garfield 发现科学期刊的发刊频率和被引用量呈 正偏态(Positively Skewed),70%的引用来自少部分的重要期刊,可见许多出版的期刊是 不重要的,顶多只是有效传递科学资讯而已。
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正偏态分布 skewed positively distribution ; [统计] [数] positively skew distribution ; positive-skewed distribution
也称正偏态 positive skewed
正态偏差 normal deviation ; gaussian deviation
偏正态分布 skewed normal distribution
标准正态偏离 standard normal deviation
单位正态偏离 unit normal deviate
单位正态偏离形式 unit normal deviate form
渐近正态无偏估计量 [数] asymptotically normal and unbiased estimator
渐近正态无偏估计 asymptotically normal and unbiased estimator
结果表明,其抗压强度具有明显的随机性,频率分布里正偏态。
The results show that the strength characteristics is random, the frequency distribution is in positive skew distribution.
正态检验结果表明,孕妇、正常男性和女性以及总体尿碘均属正偏态分布。
The result showed that the distribution of urine iodine in pregnant women, men, women and collectivity were alone to normal distribution after test of normality.
结果表明,研究区土壤砷为正偏态分布,经高斯非线性转化后,符合二阶平稳假设。
The soil as of the study area was positive skew distribution, tally with second steps stable supposed, after Gaussian non-liner change.
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