areaIntegrator: Calculates area between signal-boundaries.

In DIAlignR: Dynamic Programming Based Alignment of MS2 Chromatograms

Description

This function sums all the intensities between left-index and right-index.

Usage

areaIntegrator(l1, l2, left, right, integrationType, baselineType, fitEMG)

Arguments

l1	(list) A list of time vectors.
l2	(list) A list of intensity vectors.
left	(numeric) left boundary of the peak.
right	(numeric) right boundary of the peak.
integrationType	(string) method to ompute the area of a peak contained in XICs. Must be from "intensity_sum", "trapezoid", "simpson".
baselineType	(string) method to estimate the background of a peak contained in XICs. Must be from "base_to_base", "vertical_division_min", "vertical_division_max".
fitEMG	(logical) enable/disable exponentially modified gaussian peak model fitting.

Value

area (numeric).

Author(s)

Shubham Gupta, [e-mail] ORCID: 0000-0003-3500-8152 License: (c) Author (2019) + MIT Date: 2019-03-08

Examples

data("XIC_QFNNTDIVLLEDFQK_3_DIAlignR", package = "DIAlignR")
XICs <- XIC_QFNNTDIVLLEDFQK_3_DIAlignR[["run1"]][["14299_QFNNTDIVLLEDFQK/3"]]
l1 <- lapply(XICs, `[[`, 1)
l2 <- lapply(XICs, `[[`, 2)
areaIntegrator(l1, l2, left = 5203.7, right = 5268.5, "intensity_sum", "base_to_base", FALSE)
# 224.9373

DIAlignR documentation built on Nov. 8, 2020, 8:22 p.m.