r - 如何在R中将表列表转换为数据框

Question

该问题与以下内容有关：Count values in the columns separated by ":"

我有以下表格列表：

ll = structure(list(`001` = structure(c(1L, 2L, 1L, 1L), .Dim = 4L, .Dimnames = structure(list(
    c("Active", "Com.Tent", "Perform", "Sport_Well")), .Names = ""), class = "table"), 
    `002` = structure(c(1L, 2L, 5L, 2L), .Dim = 4L, .Dimnames = structure(list(
        c("Active", "Com.Tent", "Perform", "Sport_Well")), .Names = ""), class = "table"), 
    `003` = structure(c(2L, 1L, 4L), .Dim = 3L, .Dimnames = structure(list(
        c("Active", "Com.Tent", "Perform")), .Names = ""), class = "table")), .Names = c("001", 
"002", "003"))

ll

$`001`

    Active   Com.Tent    Perform Sport_Well 
         1          2          1          1 

$`002`

    Active   Com.Tent    Perform Sport_Well 
         1          2          5          2 

$`003`

  Active Com.Tent  Perform 
       2        1        4 

如何将其转换为以下数据框：

user_id  Active Com.tent Perform  Sport_Well
001     1       2       1       1
002     1       2       5       2
003     2       1       4       0

Answer 1

所有其他答案都很好，我只想添加基本的R解决方案

max.length  <- max(sapply(ll, length))
ll <- lapply(ll, function(x) {length(x) <- max.length; x})
d <- data.frame(do.call(rbind, ll))
d$user_id <- rownames(d)

如果要像示例输出中那样将NA替换为零，请按照您自己的建议使用 d[is.na(d)] <- 0 ：)