【发布时间】:2021-03-21 11:00:48
【问题描述】:
我有以下包含重复列的数据集,我想按以下方式堆叠它们。我可以使用bind_rows 获得所需的输出,但我想尝试使用tidyr 函数:
df <- tibble(
runs = c(1, 2, 3, 4),
col1 = c(3, 4, 5, 5),
col2 = c(5, 3, 1, 4),
col3 = c(6, 4, 9, 2),
col1 = c(0, 2, 2, 1),
col2 = c(2, 3, 1, 7),
col3 = c(2, 4, 9, 9),
col1 = c(3, 4, 5, 7),
col2 = c(3, 3, 1, 4),
col3 = c(3, 2, NA, NA), .name_repair = "minimal")
df %>%
select(runs, 2:4) %>%
bind_rows(df %>%
select(runs, 5:7)) %>%
bind_rows(df %>%
select(runs, 8:10))
# A tibble: 12 x 4 # This is my desired output in a way that column runs is a repeated number of 1 to 4
runs col1 col2 col3
<dbl> <dbl> <dbl> <dbl>
1 1 3 5 6
2 2 4 3 4
3 3 5 1 9
4 4 5 4 2
5 1 0 2 2
6 2 2 3 4
7 3 2 1 9
8 4 1 7 9
9 1 3 3 3
10 2 4 3 2
11 3 5 1 NA
12 4 7 4 NA
但是,当我使用 tidyr 时,runs 的排列方式不同。
df %>%
pivot_longer(-runs) %>%
group_by(name) %>%
mutate(id = row_number()) %>%
pivot_wider(names_from = name, values_from = value) %>%
select(-id)
# A tibble: 12 x 4
runs col1 col2 col3
<dbl> <dbl> <dbl> <dbl>
1 1 3 5 6
2 1 0 2 2
3 1 3 3 3
4 2 4 3 4
5 2 2 3 4
6 2 4 3 2
7 3 5 1 9
8 3 2 1 9
9 3 5 1 NA
10 4 5 4 2
11 4 1 7 9
12 4 7 4 NA
如果您能告诉我如何重新排列 runs 以便数字是连续的而不像连续三个 1 和...,我将不胜感激
非常感谢您。
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