Requirements:
Tableau Professional Edition
R Studio or R Console
Setting Up Tableau Desktop with R:
Install following packages in R:
install.packages(RServe)
Once it is installed then start R Server by entering following command in the console:
> library(RServe)
> RServe()
Configuring Rserve Connection:
In Tableau go to following menu setting: Help -> Settings and Performance -> Manage External Service Connection
Enter or select a server name using a domain or an IP address. On a personal laptop or computer, you can enter localhost. The drop-down list includes localhost and the server you most recently connected to.
Specify a port. Port 6311 is the default port for Rserve servers.
If the server requires credentials, specify a Username and Password.
Click Test Connection.
Click OK.
Executing R Script from Tableau:
Create a new calculated field and name it as Coefficient, which will calculate the coefficient for the linear regression model.
Then drag and drop your calculated variable to play around with visualisations.
To learn more visit: Tableau
Reckon Analytics 