[R] Sub/Superscript in plot in a loop

[mavkoup]

I have a for loop with counter i and I'm producing plots where I ultimately
want to label the axes:

"Entry a_i from P^q", where a, P and q are just letters, and i is the value
of the for loop counter.

I've tried various combinations of paste, expression and substitute, but I
can't get this to work nicely.

Thanks much!



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