求翻译：因子分析法的核心是对若干综合指标进行因子分析，并提取公共因子，再以每个因子的方差贡献率作为权数与该因子得分相乘后得到的和构造综合得分函数。是什么意思？

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Factor Analysis is the core of a number of integrated indicators for factor analysis, and extract the public factor, and to each factor of the variance contribution rate as weights and the factor score by multiplying the and construct overall score function.

The factor analytic method core is carries on the factor analysis to certain overall targets, and withdraws the public factor, again by each factor variance technical progress factor took the weight obtains and the structure synthesis score function after this factor score multiplication.

Factor analysis is the core of a number of comprehensive indicators of factor analysis, and extracted the common factors, and then using the variance contribution of each factor as weights and the scores obtained by multiplying, and structural composite score function.

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