[Rd] Extending [ method to S4 class and drop argument (PR#9211)

jverzani at gmail.com jverzani at gmail.com
Fri Sep 8 18:04:24 CEST 2006

Full_Name: John Verzani
Version: 2.4.0 alpha (2006-09-05 r39134)
OS: linux, gentoo 2.6.17
Submission from: (NULL) (

When extending the "[" method to a new S4 class, the default value for the drop
argument is not being found. Here is a small example:

setMethod("[","test",function(x,i,j,...,drop=TRUE) {print(i);print(drop)})
a = new("test",x="fred")

resulting in:

[1] 1
Error in print(drop) : argument "drop" is missing, with no default

I'm expecting TRUE for the value of drop. That's correct isn't?

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