Error in file(file, "rt") : cannot open the connection In addition: Warning message: In file(file, "rt") : cannot open file 'TCGA生存资料+miRNA表达矩阵-去重-副本.txt': No such file or directory

The error message you're seeing suggests that there is a problem opening a file named 'TCGA生存资料+miRNA表达矩阵-去重-副本.txt' because it doesn't exist or the file path is incorrect. Please make sure that the file is present in the specified directory and that the file path is accurate. You may also want to double-check the spelling and case sensitivity of the file name.

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解释Error in file(file, "rt") : cannot open the connection In addition: Warning message: In file(file, "rt") : cannot open file 'sh50_new.csv': No such file or directory

这个错误提示表明你的程序试图读取名为'sh50_new.csv'的文件，但是文件不存在或者路径不正确，因此无法打开连接。可能的原因包括：

1. 文件名或者路径名错误，需要检查是否打错了文件名或者路径名。
2. 文件确实不存在，需要确定文件是否在指定的路径下，或者是否被移动或者删除了。
3. 文件权限不足，需要检查是否有足够的权限读取文件。

你可以根据错误提示和上述可能的原因来排查问题，并且尝试解决它。

翻译一下Error in file(file, "rt") : cannot open the connection In addition: Warning message: In file(file, "rt") : cannot open file 'employee_data.csv': No such file or directory

"Error in file(file, "rt") : cannot open the connection" 表示文件无法打开。
"In addition: Warning message: In file(file, "rt") : cannot open file employee_data.csv: No such file or directory" 是一条额外的警告信息，表示找不到名为 employee_data.csv 的文件。