B

baseline

in a font, the imaginary line upon which the characters rest.

block map

a three-dimensional map that uses blocks of varying heights to represent the value of a variable for each map area.

border

in SAS/GRAPH software, the line drawn around the entire graphics output area. This area includes the title and footnote areas as well as the procedure output area. See also frame.

boundary

in the GMAP procedure, a separating line or point that distinguishes between two or more unit areas or segments.

BY group

all observations with the same values for all BY variables .

BY-group processing

the process of using the BY statement to process observations that are ordered, grouped, or indexed according to the values of one or more variables. Many SAS procedures and the DATA step support BY-group processing.

BY variable

a variable named in a BY statement whose values define groups of observations to process.