r-错误:"name"必须是单个字符串.使用Count()函数

Question

我正试图从Kaggle脚本运行这行代码：

df1 <- combined %>%
count(name = character, drilldown = character) %>% 
arrange(desc(n)) %>% 
head(9) %>% 
rename(y = n)

然而，当我运行此代码时，我收到以下错误消息：

Error: `name` must be a single string.

"组合的"；是包含2个变量(字符和对话，这两个变量都是"字符"变量(的数据帧

ep4 <- data.frame(character  = c("Luke", "Leia"),
dialogue = c("Hello", "world")
)

ep5 <- data.frame (character  = c("Darth vader", "Sidious"),
dialogue = c("My", "name")
)
ep6 <- data.frame (character  = c("R2D2", "ObiWan"),
dialogue = c("is", "Essan")
)
combined <- bind_rows(ep4, ep5, ep6)
str(combined):
'data.frame':   6 obs. of  2 variables:
$ character: chr  "Luke" "Leia" "Darth vader" "Sidious" ...
$ dialogue : chr  "Hello" "world" "My" "name" ...

我不确定我在这里做错了什么。我使用的是dpylr包中的count()函数，而不是plyr。"；name"；count函数的参数。如果我删除"；name"；参数，代码运行，但稍后创建的饼图(使用df1作为其数据(不包含每个切片的字符名称。

以下是Kaggle脚本：https://www.kaggle.com/couyang/star-wars-interac-drilldown-sentiment-analysis/execution

Answer 1

以下可能是您想要的

df1 <- combined %>%
count(drilldown = character) %>% 
arrange(desc(n)) %>% 
head(9) %>% 
rename(y = n)

您得到的错误是，它期望为name参数指定一个字符。如果你要这样做，你需要调整你的管道如下：

df1 <- combined %>%
count(drilldown = character, name = "counts") %>% 
arrange(desc(counts)) %>% 
head(9) %>% 
rename(y = counts)