求翻译：主成分分析法就是选取尽量少的主成分进行综合评价，实际应用中，选取的主成分个数一般由累计方差贡献率大于等于85%确定。是什么意思？

The principal component analysis is to select as little as possible the main component of a comprehensive evaluation and practical application, select the number of principal components is generally to determine the cumulative variance contribution rate of greater than or equal to 85%.

Main ingredient analysis is chosen to minimize the main ingredients, a comprehensive evaluation, and selection in relation to the application of the main ingredients of a number of accumulated variance contribution rate is greater than or equal to 85 per cent.

The principal components analytic method is the selection as far as possible few principal components carries on the quality synthetic evaluation, in the practical application, the selection principal components integer is bigger than generally by the accumulation variance technical progress factor

Principal components analysis is to select as few principal component comprehensive evaluation, in practical application, select the number of principal components determined by the cumulative variance rate greater than or equal to 85%.

正在翻译，请等待...