A dataset containing the meta information associated with each peak.
A data.frame with 2,442 rows (peaks/masses) and 10 columns:
Mass identifier (matches Mass column in edata) - negative ion mass as samples were analyzed by electrospray ionization in negative mode
Number of Carbons making up identified compound
Number of Hydrogens making up identified compound
Number of Oxygens making up identified compound
Number of Nitrogens making up identified compound
Indicates if compound contains Carbon13 if value is '1'
Number of Sulfurs making up identified compound
Number of Phosphorus making up identified compound
Difference between the experimental mass and the accurate mass
Experimental mass + mass of hydrogen - mass of electron