# Risk free rate for Performance Analytics

In [R] one can pass either a vector or scalar as the risk free rate. What is better? If I pass a vector to (for example) chart.riskreturnscatter then the sharpe ratio lines disappear.

chart.RiskReturnScatter(managers[,c(1,2,3)],0.01)
chart.RiskReturnScatter(managers[,c(1,2,3)],managers[,10])


So is this a feature?

Thanks, Raghu