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应用秩回归分析预测麻疹流行趋势探讨 被引量:1
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作者 邱志华 李建国 +1 位作者 梁茂松 张之建 《职业与健康》 CAS 1995年第2期28-29,共2页
本文应用秩回归分析方法预测了麻疹的流行趋势,从96个自变量当中筛选出5个相关因子,由5个相关因子优选出两个最佳预测因子X_(29)(去年14岁以下人群麻疹免疫构成比),X_(10)(去年麻疹剩余易感率),建立了二元秩回归方程式为:=0.16X_(10)-0.... 本文应用秩回归分析方法预测了麻疹的流行趋势,从96个自变量当中筛选出5个相关因子,由5个相关因子优选出两个最佳预测因子X_(29)(去年14岁以下人群麻疹免疫构成比),X_(10)(去年麻疹剩余易感率),建立了二元秩回归方程式为:=0.16X_(10)-0.88X_(29)。 用其验证和预测麻疹流行水平,其符合率达94.74%。 展开更多
关键词 麻疹 流行病学 秩回归分析 预测
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Verification of option parity relations in domestic warrants market of China
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作者 Ji cheng Liu weizhi Chen huiwen 《International Journal of Technology Management》 2013年第10期26-29,共4页
This paper screens five pairs of call walTants/put warrants with the same listing date and final exercise date from domestic delisted wattant, and collects and processes relevant statistic in warrant market and stock ... This paper screens five pairs of call walTants/put warrants with the same listing date and final exercise date from domestic delisted wattant, and collects and processes relevant statistic in warrant market and stock market. Because inconformity of strike price between call warrants/put warrants in domestic warrant market, and regarding the strike price of put warrants as standard, this paper takes advantage of BSM formula recalculates the price of call warrants, and carries out verification of option parity relations by regression analysis and Wilcoxon's Sign Rank Test. From a theoretical point of view, homogenous call warrants/put warrants should satisfy the parity relations. However, due to the lack of short sales mechanism in domestic warrant market and stock market, the empirical results indicate that domestic warrant market can' t meet the option parity relations. 展开更多
关键词 option parity relations BSM lbrmula regression analysis Wilcoxon' s Sign Rank lest
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