[R-sig-Debian] Error gdata and gplots packages

Chris Sims sims at princeton.edu
Mon Feb 24 23:09:23 CET 2014

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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