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问题描述
几个月前我运行了以下代码并且运行正常 -
I run the following code few months back and it worked OK -
ceo1_nochange <- ceo1 %>%
group_by(ISIN, year) %>%
nest(.key = "OTHER_DATA") %>%
group_by(ISIN) %>%
mutate(OTHER_DATA_LAG = lag(OTHER_DATA, 1),
OTHER_DATA_LEAD = lead(OTHER_DATA, 1),
KEEP = pmap(list(OTHER_DATA_LAG, OTHER_DATA, OTHER_DATA_LEAD), function(x, y, z) {
isTRUE(all_equal(x["DirectorID"], y["DirectorID"])) ||
isTRUE(all_equal(y["DirectorID"], z["DirectorID"]))
})) %>%
filter(unlist(KEEP)) %>%
select(-OTHER_DATA_LAG, -OTHER_DATA_LEAD, -KEEP) %>%
unnest() %>%
ungroup()
我的目的是找出那些 DirectorID 每年都没有变化的观察结果.
My purpose was to identify those observations in which DirectorID did not change from year to year.
但现在我收到以下错误 -
But now I got the following error -
Error: Problem with `mutate()` input `KEEP`.
x argument is of length zero
i Input `KEEP` is `pmap(...)`.
i The error occurred in group 1: ISIN = "AN8068571086".
Run `rlang::last_error()` to see where the error occurred.
In addition: Warning message:
Error: Problem with `mutate()` input `KEEP`.
x argument is of length zero
i Input `KEEP` is `pmap(...)`.
i The error occurred in group 1: ISIN = "AN8068571086".
Run `rlang::last_error()` to see where the error occurred.
有人能解释一下吗?
这是一个示例数据集 -
This is a sample dataset -
"ROW,ISIN,YEAR,DIRECTOR_NAME,DIRECTOR_ID
1,US9898171015,2006,Thomas (Tom) E Davin,2247441792
2,US9898171015,2006,Matthew (Matt) L Hyde,4842568996
3,US9898171015,2007,James (Jim) M Weber,3581636766
4,US9898171015,2007,Matthew (Matt) L Hyde,4842568996
5,US9898171015,2007,David (Dave) M DeMattei,759047198
6,US9898171015,2008,James (Jim) M Weber,3581636766
7,US9898171015,2008,Matthew (Matt) L Hyde,4842568996
8,US9898171015,2008,David (Dave) M DeMattei,759047198
9,US9898171015,2009,William (Bill) Milroy Barnum Jr,20462211719
10,US9898171015,2009,James (Jim) M Weber,3581636766
11,US9898171015,2009,Matthew (Matt) L Hyde,4842568996
12,US9898171015,2009,David (Dave) M DeMattei,759047198
13,US9898171015,2010,William (Bill) Milroy Barnum Jr,20462211719
14,US9898171015,2010,James (Jim) M Weber,3581636766
15,US9898171015,2010,Matthew (Matt) L Hyde,4842568996
16,US9898171015,2011,Sarah (Sally) Gaines McCoy,11434863691
17,US9898171015,2011,William (Bill) Milroy Barnum Jr,20462211719
18,US9898171015,2011,James (Jim) M Weber,3581636766
19,US9898171015,2011,Matthew (Matt) L Hyde,4842568996
20,US9898171015,2012,Sarah (Sally) Gaines McCoy,11434863691
21,US9898171015,2012,Ernest R Johnson,40425210975
22,US9898171015,2013,Sarah (Sally) Gaines McCoy,11434863691
23,US9898171015,2013,Ernest R Johnson,40425210975
24,US9898171015,2013,Travis D Smith,53006212569
25,US9898171015,2014,Sarah (Sally) Gaines McCoy,11434863691
26,US9898171015,2014,Ernest R Johnson,40425210975
27,US9898171015,2014,Travis D Smith,53006212569
28,US9898171015,2015,Kalen F Holmes,11051172801
29,US9898171015,2015,Sarah (Sally) Gaines McCoy,11434863691
30,US9898171015,2015,Ernest R Johnson,40425210975
31,US9898171015,2015,Travis D Smith,53006212569
32,US9898171015,2016,Sarah (Sally) Gaines McCoy,11434863691
33,US9898171015,2016,Ernest R Johnson,40425210975
34,US9898171015,2016,Travis D Smith,53006212569
35,US9898171015,2017,Sarah (Sally) Gaines McCoy,11434863691
36,US9898171015,2017,Scott Andrew Bailey,174000000000
37,US9898171015,2017,Ernest R Johnson,40425210975
38,US9898171015,2017,Travis D Smith,53006212569
"
有人可以提供一些线索吗?
can someone provide some clue?
推荐答案
我在代码中没有发现任何可能因最近的更改而受到影响的内容.您收到错误的原因是 lag 和 lead 函数.当您在数据帧上使用它们时，它会分别在开头和结尾创建 NULL 值.如果您将该检查放在 pmap 语句中，它应该可以工作.
I didn't find anything in the code which might be affected due to any recent changes. The reason why you are getting the error is because of lag and lead functions. When you use them on dataframe it creates NULL values at the beginning and end respectively. If you put that check in pmap statement it should work.
我还对代码进行了一些其他更改 -
I did some other changes in the code as well -
.key在nest中已被弃用，因此使用nest(OTHER_DATA = c(ROW, DIRECTOR_NAME, DIRECTOR_ID)代替.- 使用了
pmap_lgl(而不是pmap)，这样您就不必在filterunlist(KEEP)/code>. unnest需要明确提及列名才能取消嵌套，所以使用了unnest(cols = c(OTHER_DATA)).
.keyhas been deprecated innestso usednest(OTHER_DATA = c(ROW, DIRECTOR_NAME, DIRECTOR_ID)instead.- Used
pmap_lgl(instead ofpmap) so that you don't have to dounlist(KEEP)infilter. unnestneeds an explicit mention of column name to unnest so usedunnest(cols = c(OTHER_DATA)).
library(tidyverse)
ceo1 %>%
group_by(ISIN, YEAR) %>%
nest(OTHER_DATA = c(ROW, DIRECTOR_NAME, DIRECTOR_ID)) %>%
group_by(ISIN) %>%
mutate(OTHER_DATA_LAG = lag(OTHER_DATA, 1),
OTHER_DATA_LEAD = lead(OTHER_DATA, 1),
KEEP = pmap_lgl(list(OTHER_DATA_LAG, OTHER_DATA, OTHER_DATA_LEAD), function(x, y, z) {
if(length(x) > 0 && length(y) > 0 && length(z) > 0)
isTRUE(all_equal(x["DIRECTOR_ID"], y["DIRECTOR_ID"])) ||
isTRUE(all_equal(y["DIRECTOR_ID"], z["DIRECTOR_ID"]))
else FALSE
})) %>%
filter(KEEP) %>%
select(-OTHER_DATA_LAG, -OTHER_DATA_LEAD, -KEEP) %>%
unnest(cols = c(OTHER_DATA)) %>%
ungroup()
# ISIN YEAR ROW DIRECTOR_NAME DIRECTOR_ID
# <chr> <int> <int> <chr> <dbl>
# 1 US9898171015 2007 3 James (Jim) M Weber 3581636766
# 2 US9898171015 2007 4 Matthew (Matt) L Hyde 4842568996
# 3 US9898171015 2007 5 David (Dave) M DeMattei 759047198
# 4 US9898171015 2008 6 James (Jim) M Weber 3581636766
# 5 US9898171015 2008 7 Matthew (Matt) L Hyde 4842568996
# 6 US9898171015 2008 8 David (Dave) M DeMattei 759047198
# 7 US9898171015 2013 22 Sarah (Sally) Gaines McCoy 11434863691
# 8 US9898171015 2013 23 Ernest R Johnson 40425210975
# 9 US9898171015 2013 24 Travis D Smith 53006212569
#10 US9898171015 2014 25 Sarah (Sally) Gaines McCoy 11434863691
#11 US9898171015 2014 26 Ernest R Johnson 40425210975
#12 US9898171015 2014 27 Travis D Smith 53006212569
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