Description: A reference line in a chart is a visual tool used to indicate a specific value or threshold that serves as a point of comparison for the represented data. This line can be horizontal or vertical and is used to highlight a target, an average, a limit, or any other significant value that allows observers to better interpret the information presented. Reference lines are especially useful in data visualization, as they provide additional context that helps users identify trends, patterns, or anomalies in the data. By integrating a reference line, the clarity of the chart is enhanced, facilitating informed decision-making based on the comparison between the data and the reference value. In various data visualization tools, the implementation of reference lines is intuitive and allows users to customize their appearance and position, adapting to specific analysis needs. In summary, reference lines are key elements in data visualization that enrich the interpretation and understanding of the presented information.
