In the previous chapter, you learned about two common chart types: column charts and bar charts. In this chapter, we will explore two other common chart types: line charts and spline charts.
In this chapter, you will learn how to:
- Create line charts with regular time intervals
- Format the date and time
- Format data labels and the tooltip
- Create line charts with irregular time intervals
- Create line charts with multiple series
- Load data to be plotted from within an HMTL table
- Create spline charts
- Create spline charts with plot bands
- Combine line and column charts
Line charts show a series of data points connected by a straight line. They often show a set of data in which the quantity varies over time, or data that has any sort of sequential steps. Thus, they help to find trends in data series that enable us to forecast the future behavior of the quantity.
When talking about time-dependent series, there are two types:
- Series with regular time intervals
- Series with irregular time intervals
In the following examples, we will have a look at plotting both types of series with line charts.
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