fitCopula(copula, data, method = c("mpl", "ml", "itau", "irho"), start = NULL, lower = NULL, upper = NULL, optim.method = "BFGS", optim.control = list(maxit=1000), estimate.variance = NA, hideWarnings = TRUE)
请问，start, lower以及upper三者分别表示什么意思？三者的值如何确定？跟输入是数据data有什么关系呢？
本人是R语言初学者，还请多多指教，谢谢~~~ |
发表于 2015-12-30 22:12:53