最近在学r
做因子分析的时候 书上写的这句弄不出来呀 fa.promax<-fa(correlations,nfactors=2,rotate="promax",fm="pa")
Loading required namespace: GPArotation
Failed with error:  ‘there is no package called ‘GPArotation’’
Error in kaiser(loadings, rotate = "Promax", ...) :
  GPArotation is required for the Kaiser normalization
求助好心人～