| overlaps: ChromatogramOverlap | 
| as.chromatogram | convert dataset to chromatography dataset | 
| toChromatogram | Convert chromatogram tick point data to a chromatogram object | 
| subset | get subset of the chromatogram data by names | 
| topInto | |
| labels | set new labels to the chromatogram overlap data | 
| scale_time | scale the RT into different time data unit | 
| overlapsMatrix | Convert the overlap list to the matrix | 
| overlaps | Create chromatogram overlaps from a set of chromatogram objects | 
| write.pack | save the chrome overlaps data as the cdf data file | 
| read.pack |