Reference Guide

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Full Command and Function Reference 3-27

•

ptype is a command name specifying the plot type. Executing the command BAR places the

command name BAR in PPAR.

•

depend is a name specifying a label for the vertical axis. The default value is Y.

A bar is drawn for each element of the column in ΣDAT. Its width is specified by res and its

height is the value of the element. The location of the first bar can be specified by indep;

otherwise, the value in (x

min

, y

min

) is used.

Access: …µ

BAR

Input/Output: None

See also: CONIC, DIFFEQ, FUNCTION, GRIDMAP, HISTOGRAM, PARAMETRIC,

PARSURFACE, PCONTOUR, POLAR, SCATTER, SLOPEFIELD, TRUTH, WIREFRAME,

YSLICE

BARPLOT

Type: Command

Description: Draw Bar Plot Command: Plots a bar chart of the specified column of the current statistics matrix

(reserved variable ΣDAT).

The data column to be plotted is specified by XCOL and is stored as the first parameter in

reserved variable ΣPAR. The default column is 1. Data can be positive or negative, resulting in

bars above or below the axis. The y-axis is autoscaled, and the plot type is set to BAR.

When BARPLOT is executed from a program, the resulting plot does not persist unless

PICTURE, PVIEW (with an empty list argument), or FREEZE is subsequently executed.

Access: …µ

BARPLOT

Input: None

Output: A bar chart based on ΣDAT.

See also: FREEZE, HISTPLOT, PICTURE, PVIEW, SCATRPLOT, XCOL

BASIS

Type: Command

Description: Determines the basis of a sub-space of the n-space

Access: Matrices, !Ø L

VECTOR

Input: A list of vectors defining a vector sub-space of

Output: A list containing the vectors of a basis of the vector sub-space.

Flags: Exact mode must be set (flag –105 clear).

Numeric mode must not be set (flag –3 clear).

Example: Find the vectors that form a basis of the sub-space defined by [1,2,3], [1,1,1], and [2,3,4]

Command:

BASIS({[1,2,3],[1,1,1],[2,3,4]})

Result:

{[1,0,-1],[0,1,2]}