SIFT-MS and CPET Data Processor R package SIPETool version 0.1.0 Processor for selected ion flow tube mass spectrometer (SIFT-MS) output file from breath analysis. It allows the filtering of the SIFT output file (i.e., variation over time of the target analyte concentration) and the following analysis for the determination of: maximum, average, and standard deviation value of target concentration measured at each exhalation, and the respiratory rate over the measurement. Additionally, it is possible to align the SIFT-MS data with other on-line techniques such as cardio pulmonary exercise test (CPET) for a comprehensive characterization of breath samples. Software Depends: R (>= 3.5.0) Imports: Convolutioner Federico Vivaldi <federico-vivaldi@virgilio.it> Comprehensive R Archive Network (CRAN) Federico Vivaldi; Tommaso Lomonaco GPL-3 2023-02-22 application/tgz https://CRAN.R-project.org/package=SIPETool doi:10.32614/CRAN.package.SIPETool