Add Data Display Histogram
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Editor > Add > Data Display

Use to add or remove data display types from the active graph.

Dialog box items

Data Display

Bars: Check to display bars that join each data value to its base. By default, the height of each bar is equal to the frequency of the interval it represents.

Symbols: Check to represent each data value with a symbol.

Project lines: Check to display lines that project from each data point to its base.

Area: Check to draw a histogram with an outline of the bars (only visible if you uncheck Bars).