r - 如何在 R 中获取点-点-点参数的名称

Question

如何获取包含传递给函数的点-点-点参数名称的字符向量，例如:

test<-function(x,y,...)
{
    varnames=deparseName(substitute(list(...)))
    # deparseName does not exist, this is what I want !
    # so that I could *for example* call:

    for(elt in varnames)
       {print(varnames);}
}

v1=11
v2=10
test(12,12,v1,v2)

## would print 
#v1
#v2

Answer 1

试试这个:

test<-function(x,y,...)
{
  mc <- match.call(expand.dots = FALSE)
  mc$...
}

v1=11
v2=10
test(12,12,v1,v2)
[[1]]
v1

[[2]]
v2