与描述性分析相比，对应分析与最优尺度分析具有其独特的优势。

Compared with description analysis, correspondence analysis and optimal scaling analysis have unique advantages.

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方法：采用最优尺度分析对缺血性中风病的证候要素和舌象进行统计分析。

Methods: The key elements of TCM syndromes and tongue demonstrations in ischemic stroke were made statistical analysis by optimal scaling.

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与主成分分析等方法相比，对应分析与最优尺度分析方法具有其独特的优势。

Compared with factor analysis, correspondence analysis and optimal scaling technique have unique advantages.

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