In R, how can I schedule function execution in a cronjob-like way?

Question

I would like to write an R script that runs for the whole day. It should basically be an infinite loop that fetches trading data, applies smart stuff to it, and uploads the trading data somewhere else again.

I'm thinking about starting the script at 8:30am, then it would automatically "do nothing" until 9:00am, then start running in a loop until 5:00pm, and then idle again, until I shut down the R session.

What's the best way to achieve this behavior?

I have no access to Linux machines, so multiple scripts and cronjobs are not possible, unfortunately.

meatspace: Not yet, but we can certainly ask to have it installed. — Alexander Engelhardt, Apr 04 '17 at 12:22
This might be helpful as well: http://stackoverflow.com/a/41948186/3301344 — Rentrop, Apr 04 '17 at 12:32

Damien Cormann · Accepted Answer · 2017-04-04T12:27:39.263

2

 while ( as.numeric(format(Sys.time(),format =  "%H")) %in% 8:17){
if(as.numeric(format(Sys.time(),format =  "%H")) %in% 9:17){ 
# your code here
}
}

edited Apr 04 '17 at 12:27

answered Apr 04 '17 at 12:12

Damien Cormann

189
7

Haha, simple and beautiful. Thanks a lot! – Alexander Engelhardt Apr 04 '17 at 12:24

score 2 · Answer 2 · edited May 23 '17 at 12:25

2

You can take a look at this link

Windows Task scheduler can do the task

Even with Rstudio you can Some more links here and here Link Then the package taskschedulR

edited May 23 '17 at 12:25

Community

1
1

answered Apr 04 '17 at 12:15

ivivek_ngs

917
3
10
28

score 1 · Answer 3 · answered Apr 04 '17 at 12:07

1

If you're on a Windows consumer platform, you could use the 'scheduleR' package. Otherwise, if you're on a Windows Server, then you could use the Windows Scheduler.

answered Apr 04 '17 at 12:07

WHoekstra

173
7

In R, how can I schedule function execution in a cronjob-like way?

3 Answers3