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Prism User's Guide - CSAIL People - MIT

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90<br />

<strong>Prism</strong> User <strong>Guide</strong><br />

90 - - - - - - - - - - -G-- <strong>Prism</strong>-- -d-<br />

Displaying Statistics<br />

Choose Statistics from the Options menu to display a window containing statistics<br />

and other information about the variable being visualized. The window<br />

contains:<br />

* the name of the variable<br />

* its type and number of dimensions<br />

* the total number of elements the variable contains, and the total number<br />

of active elements, based on the context you set within <strong>Prism</strong> (see the next<br />

section for a discussion of setting the context)<br />

* the variable's minimum, maximum, and mean; these statistics reflect the<br />

context you set for the visualizer<br />

Figure 28 gives an example of the Statistics window.<br />

Figure 28. Statistics for a visualizer.<br />

For complex numbers, <strong>Prism</strong> uses the modulus.<br />

Setting the Context<br />

array [11[1] of Integer<br />

Ill<br />

100 elements (75 active)<br />

Min - 3<br />

Meax- 110<br />

Mean - 73<br />

Choose Set Context from the Options menu to display a dialog box in which<br />

you can specify which elements of the variable are to be considered active and<br />

which are to be considered inactive. Active and inactive elements are treated differently<br />

in visualizers:<br />

* In text, graph, surface, and vector visualizers, inactive elements are grayed<br />

out<br />

Version 1.2, March 1993<br />

Copyright 0 1993 Thining Machines Corporation<br />

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