On 02/24/2014 11:46 AM, Dirk Eddelbuettel wrote:
Elodie,
There is no error. Those are warning messages telling you that functions are
masked -- just as it says. No more, no less.
Amicalement, Dirk
In case an explanation of what "masking" or "masquer" is:
Suppose I write
> sin <- function (x) "transgression"
This puts a sin() function on the workspace that "masks" the standard
sin() function. Now I can invoke the sin()
function with the result below
> sin(2)
[1] "transgression"
The original sin() function is part of the base package, so I can still
invoke it by
> base::sin(2)
[1] 0.9092974
Or I can get rid of my new sin() function, in which case the old one
pops back up:
> rm(sin)
> sin(2)
[1] 0.9092974
When you define your own function interactively that masks a function
already on the workspace, there is no
error message. But when you load a package that masks functions on the
workspace, you get a warning.
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