R中的上标和下标

Question

I was trying to do a super script after a subscript. See image. But with this code:

xlab=expression(-log ~ K[TX]^{-1})

it put the supercript above K instead of after the TX. so basically I want the -1 to be the supercript of the whole (K[TX])^-1. Does anyone know how to do that?

Answer 1

This should do

xlab=expression(-log ~ {K[TX]}^{-1})

or, alternatively:

xlab=expression(-log ~ K[TX^{-1}])

The second is exactly what you are asking for, but it may be more difficult to read.

Test them here