Plot the per-capita mass treatment rate
     
    
    Usage
    show_msat(tt, xds_obj, clr = "black", add = FALSE)
 
     
    
    Arguments
- tt
 
a set of time points
 
- xds_obj
 
a ramp.xds  model object
 
- clr
 
the line color(s)
 
- add
 
if FALSE, use plot to draw new axes
 
 
    
    Value
    an xds model object