Compute confidence interval for time age model
     
    
    Usage
    compute_ci.age_time_model(x, ci = 0.95, le = 100, ...)
 
     
    
    Arguments
    - x
 
- serosv models
 
- ci
 
- confidence interval
 
- le
 
- number of data for computing confidence interval
 
- ...
 
- arbitrary argument
 
 
    
    Value
    
confidence interval dataframe with n_group x 3 cols, the columns are `group`, `sp_df`, `foi_df`