Normalize spectra and peaks

Usage

normalize(spec, peaks, normMeth, normMz, normTol)

Arguments

spec: List of MALDIquant::MassSpectrum
peaks: List of MALDIquant::MassPeaks
normMeth: Character, normalization method. Options are "TIC", "median" and "mz".
normMz: Numeric, mz used to normalize.
normTol: Numeric, tolerance around normMz.

Value

List of lists of normalized MALDIquant::MassSpectrum, normalized MALDIquant::MassPeaks, normalization factors as well as indicies of spectra containing the normMz in case of normMeth = "mz",

Examples

data(Blank2022spec)
data(Blank2022peaks)
norm <- normalize(Blank2022spec, Blank2022peaks, normMeth = "mz", normMz = 760.585, normTol = 0.1)

# normalization factors
norm$factor 
#>     0     0     0     0  0.04  0.04  0.04  0.04  0.12  0.12  0.12  0.12  0.37 
#> 16141 17827 16463 15979 11687 14565 15224 11857  7949 13138 19570 13271 10036 
#>  0.37  0.37  0.37  1.11  1.11  1.11  1.11    10    10    10    10  3.33  3.33 
#> 12771 16056 16157 17366 14420 15080 18108 10366 17430 12866 14851 12895 14920 
#>  3.33  3.33    30    30    30    30 
#> 16715 13496  8735 14091 13168  7955