I want to print a long string to the RStudio console so that it does not get truncated.
> paste(1:300, letters, collapse=\" \")
[1] \"1 a 2 b 3 c 4 d 5 e
This is an RStudio-specific feature, intended to help resolve problems where printing overly long strings could cause IDE sluggishness. (I believe it was added with the latest release, v0.99.896)
You can opt-out of this truncation by setting the Limit length of lines displayed in the console to:
option to 0 (see the final option in the dialog):