In
statistics, the
mode is the value that has the largest number of observations. The mode is not necessarily unique, unlike the
arithmetic mean and the
median.
See also summary statistics -- summarizing statistical data
In
music a
mode is a kind of scale; see
musical mode.
In computer science, a mode is distinct method of operation within a computer program.
Three popular examples of software employing modes:
- vi--has one mode for inserting text, and a separate mode for inserting commands. Some people also call VI's ability to line-edit a "mode" (even though it is launched outside of VI's normal interface, by invoking "ex" from the operating system's CLI.)
- Emacs--has many modes that can be evoked based on file type to more easily edit files of a certain type. Modes are written in Emacs' LISP, and all modes may not be included with all versions.
- CIOS (Cisco Internetworking Operating System)-- in order to gain the privilege to execute certain commands, you must enter a certain mode that allows you to execute that command.
In a
waveguide or
cavity[?] the
mode is one of the possible patterns of
electromagnetic field. Available patterns are derived from
Maxwell's equations and the applicable
boundary conditions[?].