Comet parameter: mass_type_fragment
         
         - Controls the mass type, average or monoisotopic, applied to fragment ion calculations.
         
- Valid values are 0 or 1:
            
            - 0 for average masses
            
- 1 for monoisotopic masses
            
 
- The default value is "1" if this parameter is missing.
         
Example:
         
mass_type_fragment = 0
         
mass_type_fragment = 1