calculateApexMaxBoundaryRatio: Calculate Apex-Max Boundary Ratio (of a Chromatographic Peak)
In MetaClean: Detection of Low-Quality Peaks in Untargeted Metabolomics Data

Description Usage Arguments Details Value Examples

View source: R/calculateApexMaxBoundary.R

Calculates the Apex-Max Boundary Ratio of the integrated region of a chromatographic peak. The Apex-Max Boundary Ratio is found by taking the ratio of the intensity of the peak apex over the intensity of the maximum of the two boundary intensities.

1	calculateApexMaxBoundaryRatio(peakData, pts)

`peakData`	A vector containing characteristic information about a chromatographic peak - including the retention time range
`pts`	A 2D matrix containing the retention time and intensity values of a chromatographic peak

This function repurposed from TargetedMSQC. Toghi Eshghi, S., Auger, P., & Mathews, W. R. (2018). Quality assessment and interference detection in targeted mass spectrometry data using machine learning. Clinical Proteomics, 15. https://doi.org/10.1186/s12014-018-9209-x

The apex-max boundary ratio (double)

# Calculate Apex Max-Boundary Ratio for a peak
data(ex_pts)
data(ex_peakData)
apexMaxBoundary <- calculateApexMaxBoundaryRatio(peakData = ex_peakData, pts = ex_pts)