R text combine superscript with round and cor functions

Question

How can I integrate this phrase into the text function: expression(R^2,"=", round(cor(tkw14_cor$TKW, tkw14_cor$Yield),2)) I also tried expression(R^2 == round(cor(tkw14_cor$TKW, tkw14_cor$Yield),2))) and expression(R^2 ~ == ~ round(cor(tkw14_cor$TKW, tkw14_cor$Yield),2))) and all the 'paste' possibilities.. It does not work like this. My goal is to have the text print: R^2 (as superscript) = rounded correlation coefficient.

Thanks,

Possible duplicate of Concatenate strings and expressions in a plot's title — qdread
– qdread, Commented Jan 17, 2018 at 12:37

P. Denelle · Accepted Answer · 2018-01-17 12:58:00Z

0

You can use bquote function.

Random example here:

plot(1)
set.seed(1)
value <-  round(cor(rnorm(1000), rnorm(1000)), 2)
text(1,1.2,bquote("R"^"2" ~ " = " ~.(value)))

answered Jan 17, 2018 at 12:58

P. Denelle

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