| PAPi-package | Pathway Activity Profiling |
| addKeggCodes | In a data frame, it substitutes the name of compounds by their respective KEGG codes. |
| buildDatabase | Build a local database containing the required information from KEGG (Kyoto Encyclopedia of Genes and Genomes) database. |
| keggLibrary | An example of the library mapping name of compounds to their respective KEGG codes. |
| metabolomicsData | An example of metabolomics data set used by 'addKeggCodes'. |
| PAPi | Pathway Activity Profiling |
| papi | papi - Pathway Activity Profiling |
| papiData | An example of the data frame produced by 'addKeggCodes' and used by 'papi'. |
| papiHtest | Apply ANOVA or t-test to results produced by 'papi'. |
| papiLine | papiLine generates a line graph of results obtained using 'papi' or 'papiHtest'. |
| papiResults | An example of the data frame produced by 'papi'. |