Please allow Tableau Online & Tableau Public to be integrated with R functionality.
Progress So far:
R integration was introduced in Tableau Desktop ver. 8.1 (Nov. 2013) onwards.
Since then users have extensively used this feature to build customized dashboards & collaborated them on a Tableau Server.
However, those dashboards cannot be rendered on Tableau Online or Tableau Public yet (as of ver. 10.1 Dec 2016)
Collaborating dashboard means Online & Public should support features from Tableau Desktop.
This feature will be very helpful to render customized: Forecasting Model, Trend Lines, Time-Series Analysis, Geo-Spatial Analysis, Custom Scripts...etc...
R-integration should be the next item on everybody's menu card...