Get fish groups Catch Bounds using IQR method
     
    
    Usage
    get_catch_bounds_iqr(data = NULL, multiplier = 1.5)
 
     
    
    Arguments
- data
 
A data frame containing columns: gear, fish_category, catch_kg
 
- multiplier
 
multiplier for IQR range (default is 1.5)
 
 
    
    Value
    A data frame with columns: gear, fish_category, upper.up