Please, remind a function name
You could use the class dispatching mechanism:
mymodel <- function(a, b, method = "S") {
.Class <- method
NextMethod("mymodel")
}
mymodel.S <- function(a, b, method = "S") cat("S:", a, b, method, "\n")
mymodel.HK <- function(a, b, method = "S") cat("HK:", a, b, method, "\n")
mymodel(1:3, 1:4)
mymodel(1:3, 1:4, "S")
mymodel(1:3, 1:4, "HK")
On 5/22/07, Vladimir Eremeev <wl2776 at gmail.com> wrote:
Sorry, I'm stuck. :)
I am writing a function, which would fit either one linear model or another
one, depending on its argument model.type.
And I don't want to use several if's, because R allows doing it with much
more beauty.
That is I am looking for prettier alternative to the following
AB2C<-function(a,b,model.type="S") { # or HK, and return NULL if this
argument has any other value
[ do some stuff]
if(model.type=="S") model<-lm( [s.model formula] )
else if (model.type == "HK") model<-lm([hk.model formula])
else model<-NULL
return(model)
}
I was looking at "switch", but didn't come to solution. Sorry <:)
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