Short Answer using source() function
Once you download, install, and open the RStudio, you'll see a part in the lower left with blue greater than symbols >.
In the part of RStudio's GUI with the blue >, enter the following
> setwd('/folder/where/the/file/is/')
> source('file_name')`
...output, if any, appears below...
Example:
Let's assume I have a file at /home/myusername/prj/r/learn_r/insurance_data.r that I want to run.
I would start up RStudio, and enter the following in the little window it has labeled Console:
Annoyingly long answer with screenshots using source() function
Well, it turned out to be much simpler than I expected to run this from RStudio's built-in console. I was surprised that this had not already been asked about RStudio, before. If it has, I guess I'll have a burned question.
Anyway, a little trial and error showed me how to do this:
Yay, output has appeared below.
Make sure to set your working directory, first.
I did this as follows from inside RStudio 1.0.143 on my Ubuntu 16.04 LTS environment:
setwd("~/proj/r/learn_r")
Next, you can enter help(source), you can search for the syntax of the source() function, and you can just type it in to the RStudio console for a prompt:
