You can use any Sic mathematical formula (e.g. involving some R buffer variables). The following functions are also predefined: STDV(dummy) returns the integrated area (K.Km/s) of the current spec- trum TPEAK(dummy) returns the Peak temperature (K) of the current spectrum VPEAK(dummy) returns the Velocity at Peak (Km/s) of the current spec- trum TDV(v1,v2) returns the integrated area (K.Km/s) of the current spec- trum between velocities V1 and V2 TPEAKV(v1,v2) returns the Peak temperature (K) of the current spectrum between velocities V1 and V2 VPEAKV(v1,v2) returns the Velocity at Peak (Km/s) of the current spec- trum between velocities V1 and V2 To create a table containing the integrated area of your spectra, type: TABLE Filename /MATH STDV(0)