Le 29/03/12 20:18, Dirk Eddelbuettel a écrit :
On 29 March 2012 at 18:51, Patrick Burns wrote:
| On 29/03/2012 18:33, Dirk Eddelbuettel wrote:
|>
|> On 29 March 2012 at 19:12, Romain Francois wrote:
|> | Le 28/03/12 13:56, Ulrich Bodenhofer a écrit :
|> |> Hi,
|> |>
|> |> My question is the following: is there any way of checking in whether a
|> |> component of an Rcpp list (or vector) with a given name exists in this
|> |> list. If I simply try accessing a non-existing component, I get an
|> |> "index out of bounds" error. Trying to catch a possible exception did
|> |> not work either. I also browsed the Rcpp package source code, but
|> |> unfortunately I got lost. Sorry if this has been addressed on this list
|> |> before. At least I googled in many different ways, but could not find
|> |> anything. Any ideas? Any help is gratefully appreciated!
|> |>
|> |> Thanks and best regards,
|> |> Ulrich
|> |
|> | Hello,
|> |
|> | I commited the has_element_called method on the Vector template (vectors
|> | of all sorts, incl lists).
|>
|> +1, but how about just calling it 'contains' rather 'has_element_called' ?
|
| I think 'contains' would imply a value
| in the vector rather than a name. The
| extra typing might be worth avoiding
| that confusion.
While that is true, it cannot deflect away from the fact that Hadley and I
are in a deadly mano-a-mano battle about the extended use, or, in my case,
strict avoidance, of underscores. That is /extremely serious/ business.
So how about hasElementCalled() then?
Or given that these are 'names' how about
hasElementNamed()
pr maybe
containsName()
Sure. Whatever makes anyone happy ;-)
--
Romain Francois
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