Running an R script programmatically [closed]

Question

I have an R script that generates a report based on the current contents of a database. This database is constantly in flux with records being added/deleted many times each day. How can I ask my computer to run this every night at 4 am so that I have an up to date report waiting for me in the morning? Or perhaps I want it to re-run once a certain number of new records have been added to the database. How might I go about automating this? I should mention I'm on Windows, but I could easily put this script on my Linux machine if that would simplify the process.

Answer 1

For windows, use the task scheduler to set the task to run for example daily at 4:00 AM

It gives you many other options regarding frequency etc. http://en.wikipedia.org/wiki/Windows_Task_Scheduler

Answer 2

How can I ask my computer to run this every night at 4 am so that I have an up to date report waiting for me in the morning?

You can set up a cronjob on a Linux system. These are run at the set time, if the computer is on. To do so, open a terminal and type:

crontab -e

And add:

00 4 * * * r source(/home/FilePath/.../myRscript.R)

Source: Stack Overflow