Scheduling R Script | 易学教程

问题

I have written an R script that pulls some data from a database, performs several operations on it and post the output to a new database.

I would like this script to run every day at a specific time but I can not find any way to do this effectively.

Can anyone recommend a resource I could look at to solve this issue? I am running this script on a Windows machine.

回答1:

Actually under Windows you do not even have to create a batch file first to use the Scheduler.

Open the scheduler: START -> All Programs -> Accesories -> System Tools -> Scheduler
Create a new Task
under tab Action, create a new action
choose Start Program
browse to Rscript.exe which should be placed e.g. here:
"C:\Program Files\R\R-3.0.2\bin\x64\Rscript.exe"
input the name of your file in the parameters field
input the path where the script is to be found in the Start in field
go to the Triggers tab
create new trigger
choose that task should be done each day, month, ... repeated several times, or whatever you like

回答2:

Supposing your R script is mytest.r, located in D:\mydocuments\, you can create a batch file including the following command:

C:\R\R-2.10.1\bin\Rcmd.exe BATCH D:\mydocuments\mytest.r

Then add it, as a new task, to windows task scheduler, setting there the triggering conditions.

You could also omit the batch file. Set C:\R\R-2.10.1\bin\Rcmd.exe in the program/script textbox in task scheduler, and give as Arguments the rest of the initial command: BATCH D:\mydocuments\mytest.r

Scheduling R Tasks via Windows Task Scheduler (Posted on February 11, 2015)

taskscheduleR: R package to schedule R scripts with the Windows task manager (Posted on March 17, 2016)

EDIT

I recently adopted the use of batch files again, because I wanted the cmd window to be minimized (I couldn't find another way).

Specifically, I fill the windows task scheduler Actions tab as follows:

Program/script:

cmd.exe

Add arguments (optional):

/c start /min D:\mydocuments\mytest.bat ^& exit

Contents of mytest.bat:

C:\R\R-3.5.2\bin\x64\Rscript.exe D:\mydocuments\mytest.r params

回答3:

I set up my tasks via the SCHTASKS program. For running scripts on startup, you would write something along the lines of

SCHTASKS /Create /SC ONSTART /TN MyProgram /TR "R CMD BATCH --vanilla d:\path\to\script.R"

See this website for more details on SCHTASKS. More details at Microsoft's website.

回答4:

You can use Windows Task Scheduler.

回答5:

Now there is built in option in RStudio to do this, to run scheduler first install below packages

  install.packages('data.table')
  install.packages('knitr')
  install.packages('miniUI')
  install.packages('shiny')
  install.packages("taskscheduleR", repos = "http://www.datatailor.be/rcube", type = 
  "source")

After installing go to

**TOOLS -> ADDINS ->BROWSE ADDINS ->taskscheduleR -> Select it and execute it.**

回答6:

After following any combination of these steps and you receive the "Argument Batch Ignored" error after R.exe runs, try this, it worked for me.

In Windows Task Scheduler:

Replace BATCH "C:\Users\desktop\yourscript.R"in the arguments field

with

CMD BATCH --vanilla --slave "C:\Users\desktop\yourscript.R"

来源：https://stackoverflow.com/questions/2793389/scheduling-r-script

标签

windows

schedule

r-faq