Line Chart

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A type of chart which displays information as a series of data points connected by straight line segments.

Charts line example with different lines types and shape types



The points in a Line Chart are spaced apart (typically by their x-axis value) and joined with straight line segments. A Line Chart is often used to visualize a trend in data over intervals of time – a time series – thus the line is often drawn chronologically.

Line Charts can also be used to compare changes over the same period of time for more than one group.

Color use

Follow the standard color order rules to determine color order for Line Charts. Each graph will have a different color with different line types and shapes, so you can easily differentiate each of them.

Pattern use

You can use either Pattern (line type or shape type) for Line Charts to help improve accessibility for your users. It's up to you to decide when best to use them.

States

Chart item interaction

Line chart with 4 datasets, the red line, circular dots, has one item selected

Legend item interaction

Line chart with 4 datasets, the red line, circular dots. Red line selected from the legend

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