Introducing line 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.
