Flip the stratigraphic order of your data series (e.g., convert stratigraphic depth series to height series, relative to a defined datum.)
flip(dat,begin=0,genplot=T,verbose=T)
Stratigraphic series. First column should be location (e.g., depth), second column should be data value.
Depth/height value to assign to (new) first stratigraphic datum.
Generate summary plots? (T or F)
Verbose output? (T or F)