[R] Primitives

[Duncan Murdoch]

On 4/9/2006 5:57 PM, Diethelm Wuertz wrote:
> Duncan Murdoch wrote:
> 
>> On 4/9/2006 5:46 AM, Diethelm Wuertz wrote:
>>
>>> How one can make a list of all functions in R's base
>>> package which are given as Primitives like abs, sqrt
>>> cumsum (but not log) ?
>>
>> There's an is.primitive() test function; you just need to 
> 
> Sorry when I ask again, how to list all functions in R's
> base installation?

ls(baseenv()) or ls("package:base")

will give you all their names.  So you need to use something like

names <- ls(baseenv())
result <- rep(FALSE, length(names))
for (i in seq(along=names)) {
   result[i] <- is.primitive(get(names[i], envir=baseenv()))
}
names[result]

Duncan Murdoch