How to include subscript in text for plot point labels
plot, r, subscript, text
Solution
You can replace `expression` with `substitute`. There's no need for the `paste`. The argument `list(t0 = t0)` tells `substitute` to replace the string `t0` with the value of the object `t0`:
plot(1,1)
t0 <- 1.3
text(1, 0.8, substitute(t[0]==t0, list(t0 = t0)), cex = 0.8)
Problem
Hi I'm new to R so I apologise if this is a very basic question. I'm trying to add text to a plot at point 11 on the x axis and point 900 on the y axis that will read `t0= -4.0280` with the 0 as subscript. Where `t0 <- -4.0280` To do this I've tried: ``` text(11,900,paste("t[0]=",t0),cex=0.8) # which gives 't[0]= -4.0280' text(11,900,expression(paste("t[0]=",t0)),cex=0.8) # which gives 't[0]=t0' # the closest I've gotten is: text(11,900,expression(paste(t[0]==t0)),cex=0.8) ``` which will use subscript but return `t0` instead of my value of -4.0280. Could anyone show me where Ive gone wrong? Cheers.