![]() It’s also possible to use the R package ggrepel, which is an extension and provides geom for ggplot2 to repel overlapping text labels away from each other. annotation_custom(): Adds static annotations that are the same in every panel.annotate(): useful for adding small text annotations at a particular location on the plot.geom_label(): draws a rectangle underneath the text, making it easier to read.geom_text(): adds text directly to the plot.This article describes how to add a text annotation to a plot generated using ggplot2 package. ggrepel: Avoid overlapping of text labels.annotation_custom : Add a static text annotation in the top-right, top-left, ….Add a text annotation at a particular coordinate.Change the text color and size by groups.Text annotations using geom_text and geom_label. ![]() ![]() # The default geom type for annotate_color() is text, you can change it to any other geom that has a. # You can pass every argument that annotate() will accept into annotate_color(). # Coloring only the first word and all of the following words the same color.Īnnotate_color(x = 0, y = 2.7, default_color = 'Gre圓0', Labels = 'Assign different colors for the first and last words',Ĭolors = c('red', '', '', '', '', '', '', '', 'blue')) # Assigning colors for first and last wordsĪnnotate_color(x = 0, y = 2.7, default_color = 'purple', # as words are colored in the order you type them Labels = 'Assign different colors for one word',Ĭolors = c('', '', 'red')) # You must assign strings before the target word you want to color. # Assigning a color for only one word in a stringĪnnotate_color(x = 0, y = 2.7, default_color = 'black', Labels = 'Assign different colors for each word',Ĭolors = c('blue', 'green', 'purple', 'orange', 'black', 'yellow')) This is an example of how it could be better used. Hopefully, you won’t actually use it to create a graph that looks like that as it is quite ugly. 03,Ĭolors = c('blue', 'green', 'purple', 'orange', 'yellow'))īoth of these blocks of code would evaluate to something like this: The function, annotate_color(), takes its arguments in the same order as annotate function and to call the same set of functions you would just type: annotate_color(x = 3, y =. So I decided to write a function that writes all of the annotate() functions for me. The huge downside of this method is that it is very labor instensive and requires very specific formatting. Then, it stacks the labels onto each other and prints them on the plot. This code hides the word that isn’t being passed through phantom() and will color it. 03, parse = T,label = 'phantom("I want many more ") * "colors"', color = 'orange') 03, parse = T,label = 'phantom("I want many ") * "more" * phantom("colors")', color = 'purple') +Īnnotate('text', x = 3, y =. 03, parse = T,label = 'phantom("I want ") * "many" * phantom("more colors")', color = 'green') +Īnnotate('text', x = 3, y =. 03, parse = T,label = 'phantom("I ") * "want" * phantom("many more colors")', color = 'blue') +Īnnotate('text', x = 3, y =. 03, parse = T,label = '"I " * phantom("want many more colors")', color = 'grey') +Īnnotate('text', x = 3, y =. This method requires the text to be formatted as shown below: annotate('text', x = 3, y =. His method is to overlay multiple annotate() functions with plotmath components to hide the parts of strings to allow the strings to overlap. So after some searching I discovered this post from Andrew Whitby’s blog. While working on a data visualization project, I discovered that ggplot2 does not allow for easy multicolor plot annoations. ![]() If you want to go straight to the function, you can find it at the bottom of the page. ![]()
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