计算每个组中包含1行和包含0行百分比的最简单方法是什么?
下面是一些小的示例数据:
dat <- structure(list(rs = c(0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0), group = c(3, 3, 3, 3, 3, 3, 3, 3, 3,