Needle Graph

Needle Graphs display time-based transactions or occurrence frequencies, rather than time-based trends. They are simply time-based Bar Graphs where each bar is located at a particular time point on the axis.

They work especially well when combined with a Line Graph.

The most common use of a Needle Graph is when showing the trading volume for a stock, typically underneath the price performance.

Figure 3-15. A needle graph.

Figure 3-16.A needle graph in combination with a line graph.

Figure 3-17. A needle graph with full width needles in a combination with an Order Book graph.

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