Wawersik J
Anaesthesist. 1980 Jun;29(6):291-9.
In all cases, statistical parameters of a H+-activities ought to be evaluated from data of pH values. Owing to the fact that the lower range of variability of the concentratons of H-ions is limited by zero, the values ought to be transformed into a logarithmic scale. In order to facilitate comprehension, the handling of transformations for the statistical evaluation of random samples is first explained by the example of the tidal volume of newborns and infants. In the second part of the paper, statistical parameters of several significant random samples of pH data are computed from various transformation systems and are contrasted in order to allow comparisons. Thus it becomes apparent that, under certain circumstances, the method of computing mean and standard deviations from a H+-activities may result in a characterization of random samples that are implausible.
在所有情况下，都应该根据pH值数据来评估H⁺活度的统计参数。由于H⁺离子浓度的变异性下限受零限制，因此这些值应该转换为对数尺度。为便于理解，首先以新生儿和婴儿的潮气量为例，解释用于随机样本统计评估的转换处理方法。在本文的第二部分，从各种转换系统计算了几个重要pH数据随机样本的统计参数，并进行对比以便于比较。因此可以明显看出，在某些情况下，根据H⁺活度计算均值和标准差的方法可能会导致对随机样本的表征不合理。
