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Update text authored by Ladislav Lhotka's avatar Ladislav Lhotka
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Interactive-Graphics.org
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......@@ -10,11 +10,9 @@ Most line charts are time series with time on the x-axis. Here is an example:
[[figures/active-graph.png]]
This charts shows two variables. The legend at the top right not only specifies the mapping of variables to colours, but also enables *selecting/deselecting* individual variables by clicking on the corresponding legend item.
This charts shows two variables. The /legend/ at the top right not only specifies the mapping of variables to colours, but also enables turning individual variables off and on by clicking on the corresponding legend item. By double-clicking on a legend item it is possible to show only that variable.
Hovering the mouse over a point of each line displays *exact values* of both coordinates, as demonstrated by the blue box near the IPv4 line.
The left and right sliders in the small copy of the chart at the bottom can be used to adjust the *limits* on the x-axis, i.e. the time interval.
Hovering the mouse over a point of each line displays exact values of both coordinates, as demonstrated by the blue box near the UDP line.
* Sparklines
[[https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0001OR][Sparklines]] such as [[figures/sparkline.png]] are tiny charts that are often embedded in tables. Again, hovering the mouse over the line shows the *exact value* at that point. Maximum and minimum values over the displayed range are indicated with red dots.
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