Marvelous Ggplot Add Legend For Lines
Barplots heatmaps line graphs boxplots and so on and we could use any amount of plots we want.
Ggplot add legend for lines. In this scatterplot we colored the points using third variable using color argument to aes function. The key is moving the color and linetype elements inside aes in order to create the legend. The key idea is to differentiate the lines by assigning different colors to each line and make them into separate groups.
To show different lines in different facets use aesthetics p. Since we used. After that you can format with scale__ and customize the legend with guides.
If I understand your data layout correctly the. I need to add a simple legend for the colors. Titles labels fonts background gridlines and legends.
Video Further Resources Summary. P labstitlePlot of length n by dose x Dose mg y Teeth length. Ggplot2 Plot with Legend.
Ggplot with long legend at bottom Fold Legend into Two Rows. The default is guide none for identity scales. We can write the legend in two lines using guides function in ggplot2.
However please note that we could also use other types of ggplots eg. In this method inbuilt attributes are passed to the function with appropriate values to generate the requirement. In this example we created a common legend for two scatterplots.