Subscripts in plots in R

Solution 1:

expression is your friend:

plot(1,1, main=expression('title'^2))  #superscript
plot(1,1, main=expression('title'[2])) #subscript

Solution 2:

If you are looking to have multiple subscripts in one text then use the star(*) to separate the sections:

plot(1:10, xlab=expression('hi'[5]*'there'[6]^8*'you'[2]))

Solution 3:

See ?expression

plot(1:10,main=expression("This is a subscript "[2]))

Solution 4:

A subscript and referring to a stored value...

a <- 10
plot(c(0,1), c(0,1), type = 'n', ann = FALSE, xaxt = 'n', yaxt = 'n')
text(0.2, 0.6, cex = 1.5, bquote(paste('S'['f']*' = ', .(a))))