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| 引用本文： | 苏宜.??????????????????????????[J].图书情报工作,1997,41(2):31-34. |
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| 作者姓名： | 苏宜 |
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| 作者单位： | ?????????????????, ??? 300071 |
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| 摘 要： | 普赖斯文献指数增长曲线是经坐标变换处理过的曲线。在普赖斯公式中，文献的年增加量与全部文献的累积总量都是时间的指数函数，而且经坐标平移后，两条曲线是同一条曲线，Ａ．И．米哈伊洛夫的论断是错误的。从年增加量拟合普赖斯指数增长曲线可以得出正确的结果，用两次回归的方法还可使数据精度得到提高
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| 关 键 词： | ???????? ???????? ??????? ????? |
Discussion on the Literature Grnwth Curve of D. Price |
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| Su Yi.Discussion on the Literature Grnwth Curve of D. Price[J].Library and Information Service,1997,41(2):31-34. |
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| Authors: | Su Yi |
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| Institution: | Department of Information Resources Management, Nankai University |
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| Abstract: | ??The literature growth curve of D.Price is a kind of coordinate-transformated curve.Both the incremental quantity per year and the cumulative quantity of all literature are exponential functions of time,and the two curves are the same curve after parallel translation.this article provides detailed calculating methods and examples. |
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