How do I change the title of a legend in R?

Key ggplot2 R functions

p + labs(). Change legend title.
p + theme(…). Change legend theme: background color, legend box border, font size and color.
p + scale_x_discrete(limits = c(“2”, “0.5”, “1”)). Change the order of the item in the legend.
p + scale_fill_discrete(name = “Dose”, labels = c(“A”, “B”, “C”)).
guides().

How do I add a legend to a map in R?

For simple use, simply use addLegend=TRUE in a rworldmap map function. Or users can call addMapLegend seperately to fine tune the legend. The user should insure that data, catMethod,numCats and colourPalette match the values used in the plot.

How do I add a legend to my world map?

How do I center a title in R?

As pointed out by @J_F, you may add theme(plot. title = element_text(hjust = 0.5)) to center the title.

What is title and legend in map?

Titles display the purpose of a healthcare map, scale bars display distance, sources explain where the data originated, and legends identify the attributes on a map. All of these cartographic elements combined embody the important final touches that make healthcare maps readable and useful.

How to add legend in ggplot?

Adding a legend If you want to add a legend to a ggplot2 chart you will need to pass a categorical (or numerical) variable to color, fill, shape or alpha inside aes.Depending on which argument you use to pass the data and your specific case the output will be different.

How can I remove the legend title in ggplot2?

– family : font family – face : font face. Possible values are “plain”, “italic”, “bold” and “bold.italic” – colour : text color – size : text size in pts – hjust : horizontal justification (in [0, 1]) – vjust : vertical justification (in [0, 1]) – lineheight : line height. – color : an alias for colour