RStudio does not display any output in console after entering code

Question

The problem is that when I run the code, there's no return in the console; I mean it does run the code, but does not return any output.

For example, if I write

v <- c(1, 2, 3, 4, 5) v 

I would expect in return

[1] 1 2 3 4 5 

But it's not working.

I have version RStudio Version 0.98.1079 and R Version 3.1.1

Answer 1

I was wondering if you had been doing a tutorial where they were demonstrating the sink function and you hadn't gotten to the point where it was reversed.

> sink('out.txt')  # diverts all output to a disk file > v <- c(1,2) > v       # output went to file > sink()  # sets the output back to the console > v [1] 1 2 

Another way would be to call closeAllConnections:

> sink('out.txt') > v > v > closeAllConnections() > v [1] 1 2 

To address the lack of response with a "+" showing at the Rstudio console ... that is a sign that the R parser "thinks" the entered text has not completed a full R command. It may indicate that you haven't typed a closing bracket or parenthesis. If typing one or two of those is unsuccessful and you keep getting mor +'s then you may be successful with typing the [esc]-key. If it is showing up immediately after a restart then you should check your code for correctness and make sure that the .Rdata file is deleted from your working directory. If you don't know what that means then you may need to search for the methods appropriate to your operating system. You could also have an error in the code of one of your .rprofile files.

In any case this has nothing to do with Rstudio per se and everything to to with the typical behavior of an R console session.

Answer 2

Do the lines still start with a "+"? It is also possible you forgot to close the brackets of a function. Try "}".