`R/data.R`

`hmdb.Rd`

A dataframe containing HMDB with unique accurate mass pmd with three digits frequency larger than 1 and accuracy percentage larger than 0.9.

`data(hmdb)`

A dataframe with atoms numbers of C, H, O, N, P, S

- percentage
accuracy of atom numbers prediction

- pmd2
pmd with two digits

- pmd
pmd with three digits