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Please enable JavaScript in your browser settings or update your browser.Adding Legend to a Plot | Basics: Line Charts
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Course Content

Visualization in Python with matplotlib

1. Basics: Line Charts

Creating an Empty PlotSimple Line ChartCreate a Simple Line ChartAdding One More LineAdd Data to the PlotAdding Legend to a PlotAdd LegendPlot Labels and TitleAdd Lables and TitlesChanging Line StyleCustomize Your Line ChartCreate a Complete Line Chart

2. Bar Charts

Simple Bar ChartCreate a Simple Bar ChartStacked BarsCreate a Stacked Bar ChartGrouped BarsCreate a Grouped Bar ChartHorizontal Bar ChartCreate a Horizontal Bar ChartCustomizing Bar ChartsCreate a Complete Bar Chart

3. Scatter Plots

The Simplest Scatter PlotCreate a Simple Scatter PlotSetting Plot ParametersSet Ticks and LimitsCustomizationCustomize Your Scatter PlotGrouping ObservationsGroup by RegionFurther GroupingGroup by Continuous VariableMaking Chart InformativeAdd Information to the Plot

Visualization in Python with matplotlib

Adding Legend to a PlotAdding Legend to a Plot

So far so good! You may remember that blue line refers to the first call of .plot() function, and the oragne line refers to the second call. But if someone other than you look on the chart, he will understand nothing. In this chapter, we will consider how to add a legend to a plot.

The easiest way to create a legend is to 'set' names while initializing plot. This can be done by setting the label parameter of .plot() function. After the labels are set, we can call plt.legend() before plt.show() to display the legend on the plot. For example, the code from the previous example can be modified in the following way:

Everything was clear?

Section 1. Chapter 6
course content

Course Content

Visualization in Python with matplotlib

1. Basics: Line Charts

Creating an Empty PlotSimple Line ChartCreate a Simple Line ChartAdding One More LineAdd Data to the PlotAdding Legend to a PlotAdd LegendPlot Labels and TitleAdd Lables and TitlesChanging Line StyleCustomize Your Line ChartCreate a Complete Line Chart

2. Bar Charts

Simple Bar ChartCreate a Simple Bar ChartStacked BarsCreate a Stacked Bar ChartGrouped BarsCreate a Grouped Bar ChartHorizontal Bar ChartCreate a Horizontal Bar ChartCustomizing Bar ChartsCreate a Complete Bar Chart

3. Scatter Plots

The Simplest Scatter PlotCreate a Simple Scatter PlotSetting Plot ParametersSet Ticks and LimitsCustomizationCustomize Your Scatter PlotGrouping ObservationsGroup by RegionFurther GroupingGroup by Continuous VariableMaking Chart InformativeAdd Information to the Plot

Visualization in Python with matplotlib

Adding Legend to a PlotAdding Legend to a Plot

So far so good! You may remember that blue line refers to the first call of .plot() function, and the oragne line refers to the second call. But if someone other than you look on the chart, he will understand nothing. In this chapter, we will consider how to add a legend to a plot.

The easiest way to create a legend is to 'set' names while initializing plot. This can be done by setting the label parameter of .plot() function. After the labels are set, we can call plt.legend() before plt.show() to display the legend on the plot. For example, the code from the previous example can be modified in the following way:

Everything was clear?

Section 1. Chapter 6
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