Cannot use `+` with a single argument i Did you accidentally put `+` on a new line?

It seems like you are encountering an error message in your code. This error message usually occurs when you try to use the `+` operator with only one argument, which is not allowed in most programming languages. To fix this error, you need to make sure that you are using the `+` operator with at least two arguments. You may also want to check if you accidentally put the `+` operator on a new line, which can also cause this error. If you provide more details about your code and the specific error message you are seeing, I may be able to provide more specific guidance.

相关问题

R语言报错Cannot use `+` with a single argument i Did you accidentally put `+` on a new line?

这个报错通常意味着您在代码中使用了 `+` 运算符但只有一个参数，这在大多数编程语言中是不允许的。如果您在 `+` 前后都只有一个参数，那么 R 会认为您是将运算符放在了一个新行上。为了解决这个问题，您需要确保在使用 `+` 运算符时至少有两个参数。您可以通过检查运算符前后的参数数目来确定是否出现了这个问题。如果您提供更多关于代码和报错信息的细节，我可能会提供更具体的建议。