[R] Default parameter values in R functions?

[Bert Gunter]

Yes, it's a bit subtle.

Argument matching is usually done through match.arg(), so see
?match.arg
for an explanation..
(the first chosen).
-- Bert


On Mon, Apr 2, 2012 at 2:30 PM, Michael <comtech.usa at gmail.com> wrote:
> Hi all,
>
> I have a newbie question:
>
> If I have a function with the following documentation:
>
>
> ca.jo(x, type = c("eigen", "trace"), ecdet = c("none", "const", "trend"), K = 2,
> spec=c("longrun", "transitory"), season = NULL, dumvar = NULL)
>
> Let's take "type" as an example... if I omit this parameter when
> calling the function,
>
>
>
> what's going to be the default value for this parameter?
>
>
>
> Amazingly the documentation didn't say which one is the default...
>
> Thank you!
>
>        [[alternative HTML version deleted]]
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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