Hi
I posted the following message on Jan 2nd and got no response... Assuming that
my timing was off (everybody was probably still on vacation or recovering from
New Year's celebration), I am taking the liberty to post it again, hoping that
I'll reach a larger audience today.
------
I am creating a few S4 classes for a package. These classes include slots set
to classes obtained using setClassUnion (some common across the new S4
classes). The code is functional but `R CMD check` keeps on reporting notes or
warnings whatever I try. I am pulling my hair on this one and would really
appreciate some insight on what I am doing wrong.
Below are some simplified versions of a real function, which each gives
different note/warning:
* Option 1 returns a note
createyNewClass <- function(){
setClassUnion("character or NULL",c("character","NULL"),where = .GlobalEnv)
setClass('newS4Classe',
where = .GlobalEnv,
slots = c(type = 'character or NULL'),
prototype = list(type = NULL)
)
}
R CMD check
...
* checking whether the namespace can be loaded with stated dependencies ... NOTE
Warning: class "NULL" is defined (with package slot "methods") but no metadata
object found to revise superClass information---not exported? Making a copy in
package ".GlobalEnv"
Warning: class "character" is defined (with package slot "methods") but no
metadata object found to revise superClass information---not exported? Making
a copy in package ".GlobalEnv"
...
* Option 2: returns a WARNING
createyNewClass <- function(){
setClassUnion("character or NULL",c("character","NULL"))
setClass('newS4Classe',
slots = c(type = 'character or NULL'),
prototype = list(type = NULL)
)
}
R CMD check:
...
* checking for missing documentation entries ... WARNING
Undocumented S4 classes:
"character or numeric"
All user-level objects in a package (including S4 classes and methods)
should have documentation entries.
...
Bit of information: I am running the R CMD check with R 3.6.1 (sorry, I cannot
update on my corporate machine :( )
Thanks in advance for your help
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