[R] generate simple function with pre-defined constants

[arun]

HI,
Not sure I understand your question:
 a <- 2
 b <- 3
 f1<- function(x) a+b*x
 f1(2)
#[1] 8
 f1(3)
#[1] 11
 f<- function(x) 2+3*x
 f(2)
#[1] 8
 f(3)
#[1] 11


A.K.

  sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_CA.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_CA.UTF-8        LC_COLLATE=en_CA.UTF-8    
 [5] LC_MONETARY=en_CA.UTF-8    LC_MESSAGES=en_CA.UTF-8   
 [7] LC_PAPER=C                 LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] arrayhelpers_0.76-20120816 abind_1.4-0               
[3] plyr_1.8                   stringr_0.6.2             
[5] reshape2_1.2.2            

loaded via a namespace (and not attached):
[1] tools_3.0.0


----- Original Message -----
From: Liviu Andronic <landronimirc at gmail.com>
To: "r-help at r-project.org Help" <r-help at r-project.org>
Cc: 
Sent: Thursday, June 6, 2013 10:48 AM
Subject: [R] generate simple function with pre-defined constants

Dear all,
Given:
a <- 2
b <- 3

I'd like to obtain the following function:
f <- function(x) 2 + 3*x

but when I do this:
f <- function(x) a + b*x
##f
##function(x) a + b*x

the 'a' and 'b' objects do not get evaluated to their constants. How
could I do that?

Thanks,
Liviu


-- 
Do you know how to read?
http://www.alienetworks.com/srtest.cfm
http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader
Do you know how to write?
http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.