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xcms (version 1.48.0)

xcmsEIC-class: Class xcmsEIC, a class for multi-sample extracted ion chromatograms

Description

This class is used to store and plot parallel extracted ion chromatograms from multiple sample files. It integrates with the xcmsSet class to display peak area integrated during peak identification or fill-in.

Arguments

Objects from the Class

Objects can be created with the getEIC method of the xcmsSet class. Objects can also be created by calls of the form new("xcmsEIC", ...).

Slots

eic:
list containing named entries for every sample. for each entry, a list of two column EIC matricies with retention time and intensity
mzrange:
two column matrix containing starting and ending m/z for each EIC
rtrange:
two column matrix containing starting and ending time for each EIC
rt:
either "raw" or "corrected" to specify retention times contained in the object
groupnames:
group names from xcmsSet object used to generate EICs

Methods

groupnames
signature(object = "xcmsEIC"): get groupnames slot
mzrange
signature(object = "xcmsEIC"): get mzrange slot
plot
signature(x = "xcmsEIC"): plot the extracted ion chromatograms
rtrange
signature(object = "xcmsEIC"): get rtrange slot
sampnames
signature(object = "xcmsEIC"): get sample names

See Also

getEIC