On 20/04/2010 2:03 PM, Xie Chao wrote:
Dear All,
I am wondering is there any shift (or pop or push or unshift) equivalent in R?
For example,
shift(x) # should return x[1], and x becomes x[-1]
Not in base R. Generally speaking, functions with side effects are
frowned upon. It is possible to write it yourself, but you need to
watch out for weird cases like
shift(x + y)
where it's not at all clear what the side effect should be.
Duncan Murdoch
Thanks a lot.
Best Regards,
Xie Chao
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