Seems pretty doubtful that a construction like (..., ...) is going to
be accepted by the R interpreter. However, if you construct your
function to handle two objects of equal length, one for the variable
names and the other for their variances, there should be no problem.
If yu want to handle a more general situation where you are passing an
arbitrary list and want the first half interpreted as variable names
and the second half interpreted as variances, well that can be
programmed as well.
On Dec 1, 2009, at 8:30 AM, Márcio Resende wrote:
Hello R-Helpers,
I am not sure if it is a very simple question but I would like to
use two
(...) in a function, for example,
this is a script where I would like to input the variable names (in
one of
the (...)) and the variances associated to those variables which are
not
calculated in the script because there is a specific software to
calculate
it (the other (...))
data <- function ("DAP", "ALT", var1, var2){ #### My wish was to do
somethin like function (...,...){
Vec <- matrix(c("DAP", "ALT")) ###here it would came the first
(...) Vec
<- matrix(c(...))
for (i in seq(along <- Vec)){
caracteristica <- Vec[i]
varF <- if (caracteristica == "DAP") var1 else var2 ##here I
would like
to do something like #if ###caracteristica == variable1) variance1
else if
(caracteristica == variable2) variance2 else ...
}
}
At this point, because of the bizarrely placed comment symbols, I am
wondering if our mail clients are using the same end-of-line markers.
but to turn this in a function, I would like to replace ("DAP",
"ALT") by
any variable and var1, var2 to any variance, and not only necessary
2, for
example
data ("variable1","variable2","variable3", "variance1", "variance2",
"variance3")
I am not sure if I made myself clear and if this is an "answerable"
doubt,
anyway thank you vey much
Márcio
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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