How to add a significant asterisk to a column chart by using ggplot2 in R language
This article introduces the relevant knowledge of "how to use ggplot2 in R language to add a prominent asterisk to a column chart". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
Step 1: prepare the data
Organize the data into excel
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The first column is the variable name
The second column is the corresponding value of the variable.
Step 2: data reading and drawing using ggplot2
Select replication of data in excel, and then run the code
Df
