Arguments of a function

Try this:

my.f <- function(a, b) {
	x1 <- 2 * 3
      x2 <- 3 / 6
      x3 <- 4 * 4 / 5 - sqrt(2)
	y <- get(deparse(substitute(a))) + get(deparse(substitute(b)))
	return(y)
}

my.f(x1, x2)

On Fri, Jan 8, 2010 at 4:15 PM, Lisa <lisajca at gmail.com> wrote:

Dear all,

I have a question about how to set arguments in my own function. For
example, I have a function that looks like this:

my.f <- function(a = x1, b = x2)
{
? x1 = equation 1
? x2 = equation 2
? x3 = equation 3
? y = a + b
}

x1, x2, and x3 are temporary variables (intermediate results) calculated
from other variables within the funciton. I want to use two of these
three
variables to calculate y, and write R script as below:

my.f(a = x1, b = x2)

or

my.f(a = x2, b = x3)

The error information shows that: ?objects 'x1', 'x2', or 'x3' not
found?.

Can anybody help me solve this problem? Thanks in advance.

Lisa

--
View this message in context:
http://n4.nabble.com/Arguments-of-a-function-tp1009883p1009883.html
Sent from the R help mailing list archive at Nabble.com.

-- 
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O