Read MS2 files

Read MS2 files

read_ms2(files)

Arguments

files	a character vector of file names or directory containing ms2 files

Value

data frame with 6 columns: file name, scan_idx, precursor mz, rt, fragment mz and fragment intensity.

Examples

ms2_file <- system.file("extdata", "ms2file.ms2", package = "lipID")

ms2_data <- read_ms2(ms2_file)
head(ms2_data)
#>   ms2_file s_idx precursor   ms2_rt   ms2_mz ms2_intensity
#> 1  ms2file     1  689.5697 27.81008 56.04944      667.1967
#> 2  ms2file     1  689.5697 27.81008 60.08085     6576.3150
#> 3  ms2file     1  689.5697 27.81008 71.07317     2527.9860
#> 4  ms2file     1  689.5697 27.81008 80.97377      634.7454
#> 5  ms2file     1  689.5697 27.81008 86.09619    29114.8500
#> 6  ms2file     1  689.5697 27.81008 87.09885      587.8085