text() to display a greek letter with subscript in R plot
Question
I was wondering how I could make the letter " sigma " appear in Greek with the subscript " m " in the text() part of the R code below?:
curve(dnorm(x,175.3,.961),160,190,type="l")
sigmam <- dnorm(177.4,175.3,.961)/ dnorm(177.4,176,4)
text(165,.285,paste("sigmam", "=", round(1/sigmam,digits=2)))
1 answers
solution1
5 ACCPTED 2016-12-18 22:24:16
Check out ?plotmath for relevant examples of how to piece this sort of thing together. For instance, here's one adapted from the " ## How to combine "math" and numeric variables : "
curve(dnorm(x,175.3,.961),160,190,type="l")
sigmam <- dnorm(177.4,175.3,.961)/ dnorm(177.4,176,4)
text(165,.285, bquote(Sigma[m] == .(round(sigmam,2))))
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