[R] using a variable and a superscript in a legend

[Patrick Giraudoux]

Dear listers,

I am trying to pass an expression inlcuding a variable and a 
superpscript to a legend. What I want to obtain is e.g. with densren = 1.25

1.25 ind./km^2

I have tried many variants of the following:

legend=bquote(.(densren) (ind./km)^2)

but if not errors, do obtain

1.25 (ind./km^2)

hence not what I want (no parenthesis, 2 in superscript...)

Any idea about a correct syntax to get what I need ?

Best,

Patrick


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