不解的是"旋转次数"说法,如果是公因子不止2个,假设有m个,则需要多轮旋转,首轮旋转次数为m中取2的组合数.当旋转后方差不再增加,则会自动停止旋转.

rotating the reference axes of the factor solution to simplify the factor structure and to achieve a more meaningful and interpretable solution. The idea of simple structure has provided the most common basis for rotation, the goal being to rotate the factors simultaneously so as to have as many zero loadings on each factor as possible

ROTATE= option in the PROC FACTOR statement supports five orthogonal rotation methods: EQUAMAX, ORTHOMAX, QUARTIMAX, PARSIMAX, and VARIMAX
常用的是正交旋转和方差最大化旋转，旋转的目的是使得各个因子更加容易解释实际意义（factor loading 大的更接近于1，小的更趋于0），旋转落实到数据就是sin，cos的转化

谢谢~~~被别人误导了~~~

谢谢你~~~辛苦了~~~

是可以设置最大旋转次数的，不过一般自动就好了