normMethod_custimp: Normalization Method: Maximum Intensity of Set
In wesleyburr/subMaldi: Organization and Processing of MALDI-MS Datasets

Description Usage Arguments Value Author(s) References See Also Examples

Called internally by normSpectra. Normalizes the intensity data of spectra to a scale of 0,1, where 1 is the single most intense peak of the spectral set; does so against a specified m/z. Capable of normalizing 1-6 spectra at once.

1	norm_custimp(dat, mass_dat, norm_mz, spectra_cols, showHI = FALSE)

`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.
`norm_mz`	Numeric m/z reference to be normalized against.
`spectra_cols`	A character string; the names of the column in `dat` containing the intensity data for the spectrs to be analyzed.
`showHI`	A Boolean variable; clipping argument for results greater than 1 after normalization.

Returns a new data frame including the original m/z data and normalized intensity data of each input spectrum.

Kristen Yeh <kristenyeh@trentu.ca> Wesley Burr <wesleyburr@trentu.ca>

https://github.com/wesleyburr/subMaldi

normSpectra

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

## Normalize the intensity data of two samples to the maximum of the blank
ex <- normSpectra(dat = Master2, mass_dat = "full_mz", norm_mz = 255.23, 
                  method = "custom_imprecise", spectra_cols = c("Blank1", "Before1", "Before2"))