Hi, I have a small R question: how to print a single "\" character? I have the following results:
print("\") does not work
print("\\")
[1] "\\"
You can use the lower level function cat() to print exactly what you want:
> cat("\\")
\>Notice that not even a newline was printed after the backslash, so the prompt showed up on the same line. To get what you were hoping for you could use
> cat("[1] \"\\\"\n")
[1] "\"but it's pretty hard to read, because of all the escapes.
I need to make the following substitution as well, but it does not work either:
sub("_","\_","g_g")
[1] "g_g"
I'm not sure what you want to get, but it might be
> cat( sub("_", "\\\\_", "g_g") ); cat("\n")
g\_gThe extra escapes are necessary because you need to send \\ to sub so that it outputs a \.
Duncan Murdoch
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