enviPat (version 1.7)

subform: Subtract one chemical formula from another

Description

Subtract one chemical formula from another

Usage

subform(formula1,formula2)

Arguments

formula1

Chemical formula to subtract from

formula2

Chemical formula to subtract

Value

• A unified and filtered peaklist

Details

Useful for adduct calculations, check adducts. Chemical formulas must conform to what is described in check_chemform. Prior check if formula2 is contained in formula2 at all? See check_ded.

See Also

adducts,check_ded

Examples

formula1<-c("C10[13]C2H10Cl10")
formula2<-c("C2H5[13]C1")
subform(formula1,formula2)