如何解决处理整洁数据框中的列表列
我们获得了1000个客户的乐高积木销售记录的数据,如下所示:
[
{
"gender": "Female","first_name": "Kimberly","last_name": "Beckstead","age": 24,"phone_number": "216-555-2549","hobbies": ["Ultimate Disc","Shopping"],"purchases": [
{
"SetID": 24701,"Number": "76062","Theme": "DC Comics Super Heroes","Subtheme": "Mighty Micros","Year": 2016,"Name": "Robin vs. Bane","Pieces": 77,"USPrice": 9.99,"ImageURL": "http://images.brickset.com/sets/images/76062-1.jpg","Quantity": 1
}
]
},
当我将销售对象转换为整洁的数据框时:
(purchases = sales %>%
tibble::tibble(item = .) %>%
tidyr::unnest_wider(item) %>%
select(gender,first_name,last_name,hobbies,phone_number,purchases) %>%
tidyr::unnest_longer(purchases) %>%
tidyr::unnest_wider(purchases))
我尝试计算出乐高购买者最喜欢的五种爱好:
purchases %>%
select(hobbies) %>%
distinct() %>%
summarise(
n = n(),most_pop_hobbies = sum(hobbies),.groups = "drop_last") %>%
select(hobbies,most_pop_hobbies) %>%
slice_max(most_pop_hobbies,n=5) %>%
distinct()
我收到错误消息:
Error in UseMethod("collapse") : no applicable method for 'collapse' applied to an object of class "character"
我认为此错误是由于变量hobbies
是一个列表而引起的,但是我不确定如何解决此问题。任何帮助将不胜感激。
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