Merge pull request #14784 from dphansen/patch-2

Added loopback connection pre-req

Author: PRMerger18

docs/machine-learning/tutorials/r-tutorial-create-models-per-partition.md

@@ -4,7 +4,7 @@ description: Learn how to model, train, and use partitioned data that is created
 ms.prod: sql
 ms.technology: machine-learning
 
-ms.date: 11/06/2019
+ms.date: 04/30/2020
 ms.topic: tutorial
 ms.author: davidph
 author: dphansen
@@ -41,6 +41,8 @@ To complete this tutorial, you must have the following:
 
 + SQL Server 2019 database engine instance, with Machine Learning Services and R integration.
 
++ The tutorial uses [loopback connection to SQL Server from an R script over ODBC](../connect/loopback-connection.md]. Therefore, you need to [create a login for SQLRUserGroup](../security/create-a-login-for-sqlrusergroup.md).
+
 Check version by executing **`SELECT @@Version`** as a T-SQL query in a query tool.
 
 Check availability of R packages by returning a well-formatted list of all R packages currently installed with your database engine instance: