A brief follow up on an earlier posting. Thanks for the earlier suggestion.
How does it matter if I pass a list or a vector of
arguments to a function that is written to take individual arguments:
f3args <- function(a1, a2, a3) { definition}
f1 <- function(b1, b2) {
calculations
n <- samplesize
b<- someestimate
c<- anotherestimate
d <- c(n, b, c)
h <- sapply(rep(d, R), f3args)
}
e <- c(m, n)
k <- sapply(rep(e, R), f1)
Is there a problem with this. Can one pass a vector of arguments to a
fucntion that is written for individual arguments. What would be a good way
for doing this?
--Anupam.
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using list to pass argument to function
2 messages · TyagiAnupam@aol.com, Brian Ripley
On Thu, 14 Nov 2002 TyagiAnupam at aol.com wrote:
A brief follow up on an earlier posting. Thanks for the earlier suggestion. How does it matter if I pass a list or a vector of arguments to a function that is written to take individual arguments:
Yes, it does.
f3args <- function(a1, a2, a3) { definition}
f1 <- function(b1, b2) {
calculations
n <- samplesize
b<- someestimate
c<- anotherestimate
d <- c(n, b, c)
h <- sapply(rep(d, R), f3args)
}
e <- c(m, n)
k <- sapply(rep(e, R), f1)
Is there a problem with this.
It seems to be incomplete, so it's hard to tell what you intended. For example, R is undefined. But you are not passing a second argument to f1. You do that via an extra argument to sapply.
Can one pass a vector of arguments to a fucntion that is written for individual arguments. What would be a good way for doing this?
?do.call,
as in do.call("f1", as.list(e))
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._