S

SAS catalog

a SAS file that stores many different kinds of information in smaller units called catalog entries. A single SAS catalog can contain several different types of catalog entries.

SAS catalog entry

a separate storage unit within a SAS catalog. Each entry has an entry type that identifies its purpose to the SAS System. See also entry type.

SAS data library

a collection of one or more SAS files that are recognized by the SAS System and that are referenced and stored as a unit. Each file is a member of the library.

SAS data set

descriptor information and its related data values organized as a table of observations and variables that can be processed by the SAS System. A SAS data set can be either a SAS data file or a SAS data view.

SAS date value

an integer representing a date in the SAS System. The integer represents the number of days between January 1, 1960, and another specified date. (For example, the SAS date value 366 represents the calendar date January 1, 1961.)

SAS Display Manager System

an interactive, windowing interface to SAS System software. Display manager commands can be issued by typing them on the command line, pressing function keys, or selecting items from the PMENU facility. Within one session, many different tasks can be accomplished, including preparing and submitting programs, viewing and printing results, and debugging and resubmitting programs.

scatter plot

a two- or three-dimensional plot showing the joint variation of two (or three) variables from a group of observations. The coordinates of each point in the plot correspond to the data values for a single observation.

segment

in the GMAP procedure, a polygon that is a part of a unit area consisting of more than one polygon. For example, consider a map of Hawaii. The representation of the single unit area (the state) consists of a group of individual segments (the islands), each of which is a separate polygon. In the GFONT procedure, a segment is a single continuous line that forms part of all of a character or symbol.

software font

See font, software.

spine

a line on a star chart used to represent the relative value of the chart statistic for a midpoint . Spines are drawn outward from the center of the chart.

spline

a method of interpolation in which a smooth line or surface connects data points.

standard deviation

a statistical measure of the variability of a group of data values. This measure, which is the most widely used measure of the dispersion of a frequency distribution, is equal to the positive square root of the variance.

string

See character string.

stroked font

a font in which the characters are drawn with discrete line segments or circular arcs. See also polygon font.

subgroup variable

the variable in the input data set for a chart that is used to proportionally fill areas of the bars or blocks on the chart.

summary variable

a variable in an input data set whose values the GCHART procedure totals or averages to produce the sum or mean statistics, respectively.

surface map

a three-dimensional map that uses spikes of varying heights to indicate levels of relative magnitude.

surface plot

a three-dimensional graph that displays a grid-like surface formed by the values of the vertical (Z) variable plotted on a plane specified by the X and Y variables.