The three different factors for example estimated salary, max salary and min salary, I have tried using add=true, although there are no errors it doesnt work
So I only want to combine these three plots into one: ggplot(freshGrad, aes(Estimated_Salary)) + geom_histogram(fill="sienna1") + theme_economist() + labs(x="Estimated Salary for Job Postings", y="Job Posting Frequency", title="IT Specialization Job Postings by Estimated Salary", subtitle = "Does Estimated Salary affect Job Postings?")
ggplot(freshGrad, aes(Min_Salary)) + geom_histogram(fill="purple") + theme_wsj() + labs(x="Min Salary for Job Postings", y="Job Posting Frequency", title="IT Specialization Job Postings by Min Salary", subtitle = "Does Min Salary affect Job Postings?") ggplot(freshGrad, aes(Max_Salary)) + geom_histogram(fill="cadetblue") + theme_fivethirtyeight() + labs(x="Max Salary for Job Postings", y="Job Posting Frequency", title="IT Specialization Job Postings by Max Salary", subtitle = "Does Max Salary affect Job Postings?") from this data set
the title does not need to be included in the combined graph i just want to be able to combine the plots into one perhaps like an overlay