[R] functions and strings

Dimitris Rizopoulos dimitris.rizopoulos at med.kuleuven.be
Wed Sep 13 10:08:49 CEST 2006


yes you're right, maybe this is better

> f <- function(x){sin(x)+exp(x)}
> strng <- gsub("(x)", "(xyz)", deparse(body(f))[2], fixed = TRUE)
> sub('^[[:space:]]+', '', strng)
[1] "sin(xyz) + exp(xyz)"


Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "Robin Hankin" <r.hankin at noc.soton.ac.uk>
To: "Dimitris Rizopoulos" <dimitris.rizopoulos at med.kuleuven.be>
Cc: "Robin Hankin" <r.hankin at noc.soton.ac.uk>; <r-help at r-project.org>
Sent: Wednesday, September 13, 2006 9:54 AM
Subject: Re: [R] functions and strings


> Hi Dmitris
> 
> thanks for this  but it's not quite right:
> 
> 
> > f <- function(x){sin(x)+exp(x)}
> > strng <- gsub("x", "xyz", deparse(body(f))[2])
> > sub('^[[:space:]]+', '', strng)
> [1] "sin(xyz) + exyzp(xyz)"
> 
> 
> and I would want "sin(xyz) + exp(xyz)"
> 
> 
> 
> 
> On 13 Sep 2006, at 08:45, Dimitris Rizopoulos wrote:
> 
>> strng <- gsub("x", "xyz", deparse(body(f))[2])
>> sub('^[[:space:]]+', '', strng)
> 
> --
> Robin Hankin
> Uncertainty Analyst
> National Oceanography Centre, Southampton
> European Way, Southampton SO14 3ZH, UK
>  tel  023-8059-7743
>

Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm



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