[Name] flag [Description] a numeric value which encodes extra alignment details for use in sorting and filtering (see samtools man page) [R Data Object Type] 
integer vector
c h a r a c t e r v e c t o r
i n t e g e r v e c t o r
f a c t o r
D N A S t r i n g S e t
P h r e d Q u a l i t y