Get normalization factors from peak data.frame

Usage

getNormFactors(peaksdf, targetMz, tol, tolppm = TRUE, allowNoMatch = TRUE)

Arguments

peaksdf: data.frame with peaks information as generated by peaks2df()
targetMz: Numeric, target mass
tol: Numeric, tolerance around targetMz
tolppm: Logical, is the tolerance provided in ppm (TRUE) or Daltion (FALSE)
allowNoMatch: Logical, stop if targetMz is not fround in single spectrum? If TRUE spectra without targetMz match will be excluded.

Value

         List with two entries:
                                  norm_factor The normalization factor for each spectrum
                                  specIdx     The index of the spectra with a match for targetMz

Examples

data(Blank2022peaks)
getNormFactors(peaks2df(Blank2022peaks), targetMz = 760.585, tol = 0.1, tolppm = FALSE)
#> $norm_factor
#>  [1] 16141 17827 16463 15979 11687 14565 15224 11857  7949 13138 19570 13271
#> [13] 10036 12771 16056 16157 17366 14420 15080 18108 10366 17430 12866 14851
#> [25] 12895 14920 16715 13496  8735 14091 13168  7955
#> 
#> $specIdx
#>  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
#> [26] 26 27 28 29 30 31 32
#>