程序是来自《R语言实战》303页
在运用fa.parallel确定主成分个数,出现如下程序错误
fa.parallel(Harman23.cor$cov,n.obs=302,fa="Pc",n.iter=100,show.legend = FALSE,main = "scree plot with parallel ananlysis")
Error in fa.parallel(Harman23.cor$cov, n.obs = 302, fa = "Pc", n.iter = 100, : object 'sim.pc' not found