无法使用 R 在 dplyr 链中用自定义值替换 Inf
Unable to replace Inf with custom value in a dplyr chain using R
我有一个如下所示的数据框
identifier shift_back_max shift_forward_max
<chr> <dbl> <dbl>
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -Inf Inf
6 17 -Inf Inf
7 18 -Inf Inf
8 19 -Inf Inf
我正在尝试用 -30
替换 -inf
,用 30
替换 Inf
。
我尝试了下面的方法。请注意,这种情况 when 是大型 dplyr 链的一部分。但只有这一行会引发错误。所以,我在这里为一栏提供它
mutate(shift_back_max= case_when(
(!is.na(shift_back_max)|!is.infinite(shift_back_max) ~'-30',
TRUE ~ shift_back_max))
但是,我收到以下错误消息
Error: Problem with `mutate()` input `shift_back_max`.
x 'from' must be a finite number
i Input `shift_back_max` is `case_when(...)`.
i The error occurred in row 5.
Run `rlang::last_error()` to see where the error occurred.
In addition: Warning messages:
1: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
2: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
3: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
4: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
5: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
6: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
7: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
8: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
我希望我的输出如下所示
identifier shift_back_max shift_forward_max
<chr> <dbl> <dbl>
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -30 30
6 17 -30 30
7 18 -30 30
8 19 -30 30
您可以使用 ifelse()
测试一个值是否无穷大,然后在 TRUE 时将其符号乘以 30:
library(dplyr)
dat %>%
mutate(across(starts_with("shift"), ~ ifelse(is.infinite(.x), 30 * sign(.x), .x)))
identifier shift_back_max shift_forward_max
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -30 30
6 17 -30 30
7 18 -30 30
8 19 -30 30
我有一个如下所示的数据框
identifier shift_back_max shift_forward_max
<chr> <dbl> <dbl>
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -Inf Inf
6 17 -Inf Inf
7 18 -Inf Inf
8 19 -Inf Inf
我正在尝试用 -30
替换 -inf
,用 30
替换 Inf
。
我尝试了下面的方法。请注意,这种情况 when 是大型 dplyr 链的一部分。但只有这一行会引发错误。所以,我在这里为一栏提供它
mutate(shift_back_max= case_when(
(!is.na(shift_back_max)|!is.infinite(shift_back_max) ~'-30',
TRUE ~ shift_back_max))
但是,我收到以下错误消息
Error: Problem with `mutate()` input `shift_back_max`.
x 'from' must be a finite number
i Input `shift_back_max` is `case_when(...)`.
i The error occurred in row 5.
Run `rlang::last_error()` to see where the error occurred.
In addition: Warning messages:
1: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
2: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
3: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
4: In min(shift_back_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
5: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
6: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
7: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
8: In min(shift_forward_max, na.rm = TRUE) :
no non-missing arguments to min; returning Inf
我希望我的输出如下所示
identifier shift_back_max shift_forward_max
<chr> <dbl> <dbl>
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -30 30
6 17 -30 30
7 18 -30 30
8 19 -30 30
您可以使用 ifelse()
测试一个值是否无穷大,然后在 TRUE 时将其符号乘以 30:
library(dplyr)
dat %>%
mutate(across(starts_with("shift"), ~ ifelse(is.infinite(.x), 30 * sign(.x), .x)))
identifier shift_back_max shift_forward_max
1 11 -140 0
2 12 -63 149
3 13 -37 327
4 14 0 193
5 16 -30 30
6 17 -30 30
7 18 -30 30
8 19 -30 30