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matlab shangzhi

于 2018-07-23 发布 文件大小:1KB
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下载积分: 1 下载次数: 11

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  利用熵值法判断某个指标的离散程度的。在信息论中,熵是对不确定性的一种度量。信息量越大,不确定性就越小,熵也就越小;信息量越小,不确定性越大,熵也越大。根据熵的特性,我们可以通过计算熵值来判断一个事件的随机性及无序程度,也可以用熵值来判断某个指标的离散程度,指标的离散程度越大,该指标对综合评价的影响越大。 因此,可根据各项指标的变异程度,利用信息熵这个工具,计算出各个指标的权重,为多指标综合评价提供依据。(Using entropy method to judge the degree of dispersion of a certain index.)

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matlab shangzhi.txt, 1667 , 2018-07-23

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