PSA with non-numeric distribution inputs

[shuxchen]

Hello,

I am using Shiny to build a user interface that allows user to vary some data inputs, such as treatment effect and cost of the intervention. However, while defining PSA, it seems that distribution inputs (e.g. mean and sd) have to be numeric numbers.

Is it possible to incorporate non-numeric inputs in defining the resampling distributions (in the Shiny case, input$parameter_mean from the UI side)?

Thanks a lot!