Merge positive and negative mode data

Merge positive and negative mode data

Usage

getpn(pos, neg, ppm = 5, pmd = 2.02, digits = 2, cutoff = 0.9)

Arguments

pos

a list with mzrt profile collected from positive mode. The sample order should match the negative mode.

neg

a list with mzrt profile collected from negative mode.The sample order should match the positive mode.

ppm

pmd mass accuracy, default 5

pmd

numeric or numeric vector

digits

mass or mass to charge ratio accuracy for pmd, default 2

cutoff

correlation coefficients, default 0.9

Value

mzrt object with group information from pos mode