Re: [R] Evaluating a string

2010-07-02 Thread David Winsemius
On Jul 2, 2010, at 2:05 AM, Joshua Wiley wrote: Hello Jonathan, You can use eval() and parse(), although there may be better ways of getting to your end goal > do.call(operator, list(a,b)) [1] 1 (assuming you have not inherited a series of character strings held in objects that should be

Re: [R] Evaluating a string

2010-07-01 Thread Joshua Wiley
Hello Jonathan, You can use eval() and parse(), although there may be better ways of getting to your end goal (assuming you have not inherited a series of character strings held in objects that should be run as commands). At any rate, this works: a <- 3 b <- 2 operator <- "-" statement_string <-

[R] Evaluating a string

2010-07-01 Thread Jonathan Greenberg
Rhelpers: How do I get R to evaluate a string, as if it was an R statement, e.g.: a=3 b=2 operator="-" statement_string=paste(a,operator,b,sep="") --j __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the