Portfolio Optimization App with R Shiny | 15-Second Demo: This is just a quick 15-second video of a new web application we built with #shiny for optimizing a #stock #portfolio. Tools we ... atOptions = { 'key' : 'a8dfc29b76f8e0e43144f40c1f6e4e79', 'format' : 'iframe', 'height' : 90, 'width' : 728, 'params' : {} }; document.write('');