# data[].attributes.body
A legend is the visual explanation for the various points being plotted within a graph. A parameter is a numerical characteristic of a population, as distinct from a statistic of a sample. A Sparkline is a small graphic designed to give a quick representation of numerical or statistical information within a piece of text, taking the form of a graph without axes.

# data[].attributes.body
It can often be difficult to interpret Excel workbooks that contain a lot of data. Charts allow you to illustrate your workbook data graphically, which makes it easy to visualize comparisons and trends. Excel has several different types of charts, allowing you to choose the one that best fits your data. After inserting a chart, there are several things you may want to change about the way your data is displayed. It's easy to edit a chart's layout and style from the Design tab. There are many other ways to customize and organize your charts. For example, Excel allows you to rearrange a chart's data, change the chart type, and even move the chart to a different location in the workbook.