interval Element (GPL)

Syntax

interval.<collision modifier>(<function>)

<collision modifier>. A method that specifies what should happen when two interval graphic elements overlap each other. The collision modifier is optional.

<function>. One or more valid functions. The position function is required. The scale function is required when there are multiple scales in a single dimension (as in a "dual axis" graph).

Description

Specifies an interval (bar) graphic element, as would be used in a bar chart, histogram, or error bar chart.

Examples

Figure 1. Example: Bar chart

ELEMENT: interval(position(summary.mean(jobcat*salary)))

Figure 2. Example: Histogram

ELEMENT: interval(position(bin.rect(summary.count(salary))))

Figure 3. Example: Error bar chart

ELEMENT: interval(position(region.confi.mean(jobcat*salary)), shape(shape.ibeam))

Figure 4. Example: Stacked bar chart

ELEMENT: interval.stack(position(summary.sum(jobcat*salary)), color(gender))