identityAnchorSelection: Select Matching Ids as Anchors

In hhabra/Combiner: Method for Combining LC-MS Metabolomics Feature Measurements

Select Matching Ids as Anchors

Description

This is an optional helper function for selectAnchors. Uses identities to guide selection of ordered retention time pairs. If useID option is set to TRUE, it will select pairs of features with matching ID character strings before proceeding with iterative anchor selection.

Usage

identityAnchorSelection(cTable, windx, windy, useID, brackets)

Arguments

cTable	data frame, contains only feature ids, mzs, rts, Qs, & labels
windx	numeric positive retention time exclusion window in X dataset
windy	numeric positive retention time exclusion window in Y dataset
useID	logical. Operation proceeds if TRUE, terminates otherwise.
brackets	If useID = TRUE, bracketed identity strings of the types included in this argument will be ignored

Details

Identity anchors are allowed to violate constraints of m/z, Q, and rtq difference tolerances, and will not be removed if they fall within a rt exclusion window of other features. If a name appears more than once, only the pair with the highest relative abundance is selected.

Value

combinedTable with updated anchor labels

See Also

selectAnchors

hhabra/Combiner documentation built on June 5, 2024, 10:56 a.m.