Currently Power BI have 2 types of entities for R-based visualization: - R-visual (will grab and show image from your graphical device, PNG-based)
- R Custom Visual is of two types: PNG-based, HTML-based
HTML-based visual will show any HTML file generated in code, but it has to be self-contained (single flat file). So theoretically, it is possible make it work in Power BI, but not straighforward.
You welcome to send me (boefraty@microsoft.com) the R-code sample and we'll try to guide you.
P.S. And we will need to request missing packages for service.