论因子分析中因子个数与矩阵秩的关系

The Number of Factors in Factor Analysis to the Matrix Rank

因子分析模型中遗留了较多的问题,如通常我们利用公共因子的信息率的大小来确定因子的个数,这样一般是个近似解.本文试图从矩阵秩的角度来确定因子分析中因子个数,同时用实例说明了这种确定答案的计算思路.

Factor analysis model still have some problems： such as we usually use the size of the information rate to determine the number of factors, which in general is a myopic solution. This article attempts from the angle of matrix rank, to determine the number of factors in factor analysis, at the same time use the example illustrates the calculation process.