subform {enviPat}

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

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.

Value

A unified and filtered peaklist

Author(s)

Martin Loos

See Also

adducts,check_ded

Examples

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