roby.brunelli at gmail.com
2008-Nov-07 10:21 UTC
[R] Applying a function to a list of arguments ...
How can I apply function f, that I get as an argument as in func <- function(f, ...) { . . . } to a list of arguments list(a, b, c) (eg the ... argument of func above) in order to obtain f(a, b, c) Thanks a lot, Roberto [[alternative HTML version deleted]]
perhaps something like, func <- function(f, ...) { do.call(f, ...) } func(rnorm, list(n=3, mean=2, sd=3)) baptiste On 7 Nov 2008, at 10:21, roby.brunelli at gmail.com wrote:> How can I apply function f, that I get as an argument as in > > func <- function(f, ...) { > . > . > . > } > > to a list of arguments list(a, b, c) (eg the ... argument of func > above) > in order to obtain > > f(a, b, c) > > Thanks a lot, > > Roberto > > [[alternative HTML version deleted]] > > ______________________________________________ > 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._____________________________ Baptiste Augui? School of Physics University of Exeter Stocker Road, Exeter, Devon, EX4 4QL, UK Phone: +44 1392 264187 http://newton.ex.ac.uk/research/emag
Gabor Grothendieck
2008-Nov-07 13:58 UTC
[R] Applying a function to a list of arguments ...
Try this: func <- function(f, ...) f(...) # e.g. func(sin, 0) # same as sin(0) func(max, 1, 2) # same as max(1, 2) On Fri, Nov 7, 2008 at 5:21 AM, <roby.brunelli at gmail.com> wrote:> How can I apply function f, that I get as an argument as in > > func <- function(f, ...) { > . > . > . > } > > to a list of arguments list(a, b, c) (eg the ... argument of func above) > in order to obtain > > f(a, b, c) > > Thanks a lot, > > Roberto > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. >