[R] How to use a reserved word in italics in an expression

[Michael Kubovy]

Dear R-helpers,

 > label2 <- expression(paste(italic(attraction function:), 'slope'))
Error: unexpected 'function' in "label2 <-  
expression(paste(italic(attraction function"

How do I tell R that in this case I don't want 'function' to be  
treated as a reserved word but as a string in italics?
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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