[R] String mathematical function to R-function

2006-07-08 Thread Cleber N.Borges
hello I make a subroutine that give-me a (mathematical) function in string format. I would like transform this string into function ( R function ). thanks for any tips. cleber #e.g. fun_String = -100*x1 + 0*x2 + 100*x3 fun - function(x1,x2,x3){ return( evaluation( fun_String )

Re: [R] String mathematical function to R-function

2006-07-08 Thread Renaud Lancelot
fun_String - -100*x1 + 0*x2 + 100*x3 fun - function(x1, x2, x3){ + eval(parse(text = fun_String)) + } fun(4:0, -2:2, 0:4) [1] -400 -2000 200 400 Best, Renaud 2006/7/8, Cleber N.Borges [EMAIL PROTECTED]: hello I make a subroutine that give-me a (mathematical) function in

Re: [R] String mathematical function to R-function

2006-07-08 Thread Liaw, Andy
Cc: r-help@stat.math.ethz.ch Subject: Re: [R] String mathematical function to R-function [Broadcast] fun_String - -100*x1 + 0*x2 + 100*x3 fun - function(x1, x2, x3){ + eval(parse(text = fun_String)) + } fun(4:0, -2:2, 0:4) [1] -400 -2000 200 400 Best, Renaud 2006/7/8