# Main Features

A more detailed section specifies changes in recent releases of DAVE.
Also, visit the screenshots section to see DAVE in action.

## Reduction | ## Visualization
Data reduction support for following NCNR/PSI instruments: Triple Axis spectrometers: SPINS, BT2, BT7 and BT9 Filter Analyzer: FANS TOF chopper spectrometers: FCS, DCS Back Scattering spectrometers: HFBS Spin Echo spectrometers: NSE FOCUS and MARS spectrometers at PSI, Switzerland Can also read in ASCII data | Modules are available which provide: User configurable multi-line/symbol plots User configurable area (contour, image) and surface plots Ability to rebin, scale, and shift individual datasets Make 1D slices/cuts of 2D data Merge/combine multiple 1D/2D datasets into a single 2D dataset Print or generate hardcopy output in postscript and other image (jpeg/png/bmp/tiff) formats
## Analysis | ## Other
The following data analysis tasks can be performed: General-purpose least-squares fitting of 1D/2D data using 1D model functions General-purpose least-squares fitting of 2D data using 2D model functions A large selection of model functions (1D and 2D) are included Possible to specify user-defined functions (1D only) Ability to include instrumental resolution function in the model functions Fitted parameters and results can be analyzed and saved as ASCII data and/or hardcopy plots | Numerous modules underneath the Planning and Tools menu: Neutron cross sections table for all elements and isotopes Tool for calculating neutron cross section for any arbitrary compound/molecule Instrument specific tools useful for experiment planning Data tools for examining raw/dave files Utility to calculate neutron vibrational lineshape from a Gaussian 98 logfile Spurion calculator for determining the location of spurious inelastic peaks for Triple Axis spectrometers Eigenvalue and hindered rotational dynamics calculator for molecular rotors (hydrogen, methyl systems) Self-shielding corrections calculator Digitizer for extracting data points from a plot or image