Description: Underlying data refers to the original data that serves as the basis for analysis or reporting. This data can be numerical, textual, or of other types, and is fundamental for informed decision-making across various disciplines. In the context of data analysis, underlying data provides the raw material that is processed and transformed to extract valuable information. The quality, accuracy, and relevance of this data are crucial, as any errors or biases in the underlying data can lead to incorrect conclusions. In data visualization, this data is graphically represented to facilitate understanding and analysis. The way it is presented can influence the interpretation of the information, making the choice of underlying data even more important. In summary, underlying data is the foundation upon which analyses and visualizations are built, and its proper management is essential for obtaining meaningful and useful results.