文件错误（文件“ rt”）

Question

I'm using Rstudio and I cannot open several file .txt because of this error message :

Error in file(file, "rt") : cannot open the connection

I enter :

X1= read.table("fileX1.txt", header = FALSE)

I don't understand because some of my colleagues use the same function with the same .txt file and it works for them

Answer 1

Since you aren't specifying the path to the file, R will look for it in the current directory. If that isn't the directory containing the file, you'll get that error.

You can use setwd() (or a menu command in RStudio) to set the current directory. Alternatively, you could use file.choose() to get a dialog to choose the file; it will return the full filename including the path.