Questions tagged «mlogit»

5
如何在大量数据点中进行值的插补?
我的数据集非常大,大约缺少5%的随机值。这些变量相互关联。以下示例R数据集只是一个具有虚拟相关数据的玩具示例。 set.seed(123) # matrix of X variable xmat <- matrix(sample(-1:1, 2000000, replace = TRUE), ncol = 10000) colnames(xmat) <- paste ("M", 1:10000, sep ="") rownames(xmat) <- paste("sample", 1:200, sep = "") #M variables are correlated N <- 2000000*0.05 # 5% random missing values inds <- round ( runif(N, 1, length(xmat)) …
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