normMethod_max: Normalization Method: Maximum Intensity

In wesleyburr/subMaldi: Organization and Processing of MALDI-MS Datasets

Description

Called internally by normSpectra. Normalizes the intensity data of spectra to a scale of 0,1. Capable of normalizing 1-6 spectra, to their individual maxima, at once.

Usage

norm_max(dat, mass_dat, spectra_cols)

Arguments

dat	The name of the spectral data frame, containing m/z data in the first column and spectral intensity data in subsequent columns.
mass_dat	A character string; the name of the column in dat containing the m/z data for the spectrum.
spectra_cols	A character string; the names of the column in dat containing the intensity data for the spectrs to be analyzed.

Value

Returns a new data frame including the original m/z data and normalized intensity data.

Author(s)

Kristen Yeh <[e-mail]> Wesley Burr <[e-mail]>

References

https://github.com/wesleyburr/subMaldi

See Also

normSpectra

Examples

## Load sample dataset "Master2.rda"
data("Master2")

## Normalize intensity data for three spectra
normSpectra(dat = Master2, mass_dat = "full_mz", method = "max", 
            spectra_cols = c("Blank1", "Before1", "After1"))

wesleyburr/subMaldi documentation built on Oct. 1, 2021, 7:07 a.m.