fuzzyMatch: A function that performs matching with a fixed tolerance, and...

In ohgane/ShotgunLipidomicsR: Utility Functions for Analysis/Visualization of ShotgunLipidomics Data.

Description

This function accepts a query vector and a reference value to search, and return T/F vector of the same length as the query vector. For elements of query vector, it returns TRUE if the value is within the tolerance of reference value. The larger of the mzabs or ppm is used as tolerance.

Usage

sapply(vector, fuzzyMatch, ref, mzabs=1)

Arguments

query	A numeric vector.
ref	A numeric.
mzabs	Tolerance in m/z unit. The larger of the mzabs or ppm is used.
ppm	Tolerance in ppm. The larger of the mzabs or ppm is used.

Value

A logical vector of the same length as query vector.

Examples

fuzzyMatch(1:5, ref=3, ppm=10)

ohgane/ShotgunLipidomicsR documentation built on May 24, 2019, 11:55 a.m.