Metabolomics?

That's why MrR is.

MrR stands for Mass spectrometry Reserch using R. MrR is an R package for the Mass spectrometry Research. MrR can be used to analyze the mass spectrometry data for baseline correction, denoising, peak detection, peak alignment, peak normalization, and biomarker discovery

Peak detection (msPeak, msPeakG); Peak alignment (SWPA, mSPA, MbPA, ppmSPA, coAlign); Peak identification (iOPT, mPP, eBID, iFDR); Post-hoc (iPAD); Peak network construction (MetNet, netFDR)

If you have any questions, please contact via the email: biostatistician dot kim at gmail dot com.