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Line Graph: When to use it
The Quality Toolbook >
Line Graph > When to use it
When to use it | How to understand it |
Example | How to do it | Practical
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When to use it
- Use it when an item is repeatedly measured, to show changes across time.
- Use it when measuring several different items which can be shown on the same scale, to show how they change relative to one another.
- Use it when measuring progress towards a goal, to show the relative improvement.
- Use it, rather than a Bar Chart, to show continuous change, rather than discrete measurements. It is also better when there are many measurements.
- Use it, rather than a Control Chart, when not measuring the degree of control of a process.
Fig. 1. Using the Line Graph in problem solving
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