标签: r regression linear-regression stochastic
使用sfa分析包时,此错误即将到来,“ as.Formula(formula)中的错误:找不到函数“ as.Formula”
我的代码:
install.packages("sfa") library(frontier) library(sfa) truncated_normal<-sfa(formula = lMILK ~ lLAND + lFEED + lCOWS + lLABOR, data = cs)