R - 写入 csv 时出错

Question

我有以下数据集：

 Artist Song.Rank          Song.Title      Word WordCount SentimentScore.text SentimentScore.sentiment
1  Placeholder        60 More Placeholders   alright        40             alright                  Neutral
2  Placeholder        60 More Placeholders       bad        79                 bad                 Negative
3  Placeholder        60 More Placeholders       bad       192                 bad                 Negative
4  Placeholder        60 More Placeholders    better       125              better                 Positive
5  Placeholder        60 More Placeholders     brand        24               brand                  Neutral
6  Placeholder        60 More Placeholders     break       106               break                 Negative
7  Placeholder        60 More Placeholders     cause        18               cause                  Neutral
8  Placeholder        60 More Placeholders      come        59                come                  Neutral

此数据集包含来自 xlsx 文件的数据。只有最后一列 Sentiment 是我自己通过使用 RSentimentpackage 添加的。

尝试将其插入 csv 时，我收到以下消息：

> write.csv(dataset,"calculated.csv")
Error in if (inherits(X[[j]], "data.frame") && ncol(xj) > 1L) X[[j]] <- as.matrix(X[[j]]) : 
missing value where TRUE/FALSE needed

经过一番研究，我发现这是因为我的数据集包含一个嵌套数据框，但建议的解决方案 Like This 没有帮助。 （在这种情况下，我收到了 invalid subscript type 'closure' 错误。）

编辑：我看到很多帖子都被问到这个问题：

> str(dataset)
'data.frame':   28 obs. of  6 variables:
 $ Artist        : chr  "Placeholder" "Placeholder" "Placeholder" "Placeholder" ...
 $ Song.Rank     : num  60 60 60 60 60 60 60 60 60 60 ...
 $ Song.Title    : chr  "More Placeholder" "More Placeholder" "More Placeholder" "More Placeholder" ...
 $ Word          : chr  "alright" "bad" "bad" "better" ...
 $ WordCount     : num  40 79 192 125 24 106 18 59 138 146 ...
 $ SentimentScore:'data.frame': 28 obs. of  2 variables:
  ..$ text     : Factor w/ 23 levels "alright","bad",..: 1 2 2 3 4 5 6 7 8 9 ...
  ..$ sentiment: Factor w/ 3 levels "Negative","Neutral",..: 2 1 1 3 2 1 2 2 2 2 ...

Answer 1

我在这里假设您不想要嵌套的 data.frames。然后做这样的事情：

new_dataset <- data.frame(subset(dataset, select = -c(SentimentScore)), 
                          dataset$SentimentScore)
write.csv(new_dataset, 
          file = "dataset.csv", 
          quote = FALSE)