词汇：reciprocal
adj. 相互的；互惠的；倒数的，彼此相反的
相关场景
All elements in group equals to the mean; 1 /(group_mean(eps/close,1, industry)) ;group_mean(x, group) operator can be used to calculate harmonic mean of datafields. Harmonic mean gives equal weight to each value in terms of their reciprocal contribution and is considered a better method for calculating average for fundamental ratios and factors. For example, Harmonic mean of P/E ratio (price-to-earnings) for an industry can be calculated as:
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组中的所有元素均等于平均值；1/（group_mean（每股收益/收盘价，1，行业））；group_man（x，group）算子可用于计算数据场的调和均值。调和平均值根据它们的互易贡献赋予每个值相等的权重，被认为是计算基本比率和因子平均值的更好方法。例如，一个行业的市盈率（市盈率）的调和平均值可以计算为：
753. The vocation advocate found the word "vocal" and "reciprocal" not in the vocabulary.
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