[R] expression with running index
tpapp at axelero.hu
Sun Apr 25 20:13:14 CEST 2004
I need a list of expression of the form expression(b[i]), where i is a
running index. So for example, if i <- -1:2, I would like to have a
list equivalent to
list(expression(b[-1]), expression(b), expression(b), expression(b))
"i" might be a character vector (like c("f", "g", "h"))
Could somebody help me out by writing a function that produces the
list above for a given string in place of "b" and a vector of subscripts?
Sorry if this has been discussed before, I tried searching the
archives but "expression" as a keyword gives too many results on
Tamás K. Papp
E-mail: tpapp at axelero.hu
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