Frontier Analyst® version 4 can handle from 5 to an "unlimited" number of units (depending on the license purchased). It also allows you to specify weightings for particular variables.

• Unit and input/output variables can be individually enabled or disabled. Version 4 now allows you to hide disabled items from the data viewer for easier focus.
• Built-in data editor.
• Paste data direct from spreadsheet.
• Import from tab-delimited file, clipboard or SQL database such as SQL Server or Oracle.
• Copy tables and graphs to clipboard for including in reports.
• Copy full results data to clipboard for further analysis (new in version 3, further improved in version 4).
• Input minimization or output maximization modes.
• Variable returns or constant returns to scale modes.
• Advanced analysis options available: additive, allocative models, and super-efficiency calculation.
• Malmquist indices for seeing how units are changing over time.
• Data inversion for automatic "undesirable" handling.
• Friendly user interface acclaimed in independent reviews.
• High quality graphical displays of all the aspects of the analysis
• Licenses for from 75 to over 20,000 (see below) Decision Making Units (all capable of analyzing from as few as 5 DMUs).
• Over 32 input and output variables (there is no limit placed by the software, but the analysis may work best with fewer depending on your data). Input data filtering and individual unit inclusion/exclusion provide flexible input data management. Units can be filtered by value or text field (select only units in "North"). Categorical values can be used to segment the data for analysis. Filter options are stored in the project.
• Flexible import facilities from file, spreadsheet or database using a “wizard”.
• Input/output variable selection to allows quick comparison with various variables.
• Printed reports of common information, with export to Word for easy editing.
• Weighting facility to ensure that important factors are always considered.
• Tabular scores report (with a variety of sorting methods).
• Additional correlation displays.
• Report designer for report customisation*.
• Export tables and detailed data to Excel for post-analysis use.
• Publish to Web facility for distribution via intranet.
• Fully multi-processor capable to split an analysis into multiple parts, and to analyse multiple comparisons at the same time, for fastest possible operation*.
• Many other features.