考虑以下示例(向量中的值是目标练习结果,我正在尝试按射击分数自动排序)。我们生成三个向量。我们根据列对列1:20
中的值进行升序排序,对行进行降序排序out.tot
。
# Generate data
shooter1 <- round(runif(n = 20, min = 1, max = 10))
shooter2 <- round(runif(n = 20, min = 1, max = 10))
shooter3 <- round(runif(n = 20, min = 1, max = 10))
out <- data.frame(t(data.frame(shooter1, shooter2, shooter3)))
colnames(out) <- 1:ncol(out)
out.sort <- t(apply(out, 1, sort, na.last = FALSE))
out.tot <- apply(out , 1, sum)
colnames(out.sort) <- 1:ncol(out.sort)
out2 <- cbind(out.sort, out.tot)
out3 <- apply(out2, 2, sort, decreasing = TRUE, na.last = FALSE)
out2
丢失时附加了行名out3
。唯一的区别是我使用MARGIN = 2
了 ,这可能是罪魁祸首(因为它逐列接收)。我可以手动匹配行,但是有没有办法让行名out3
不消失?
> out2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 out.tot
shooter1 1 2 2 3 3 3 4 5 5 5 6 6 6 6 6 7 8 9 9 10 106
shooter2 1 3 3 3 3 4 4 4 5 5 5 5 5 6 7 8 8 9 9 10 107
shooter3 1 1 2 2 2 3 3 4 5 5 5 6 6 6 6 7 8 8 8 9 97
> out3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 out.tot
[1,] 1 3 3 3 3 4 4 5 5 5 6 6 6 6 7 8 8 9 9 10 107
[2,] 1 2 2 3 3 3 4 4 5 5 5 6 6 6 6 7 8 9 9 10 106
[3,] 1 1 2 2 2 3 3 4 5 5 5 5 5 6 6 7 8 8 8 9 97