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This function takes a peaklist in long format as created by XCMSnExp_CAMERA_peaklist_long and converts each pcgroup to a Spectra object-

Usage

peaklist_to_spectra(peaklist_long)

Arguments

peaklist_long

A long format peaklist with at least the columns: filename, feature_id, into, f_mzmed, f_rtmed, pcgroup, ionmode, project. Ionmode must identify the ionization ionmode by "pos" or "neg".

Value

A Spectra() object with the peaks