On Mon, Mar 28, 2011 at 12:49 AM, Raymond Hettinger < raymond.hettin...@gmail.com> wrote:
> Do a google code search for R's builtin functions cumsum, cumprod, cummin, > and cummax. Look at mumpy's accumulate ufunc which works with many > operators. APL and K also have an accumulate tool which takes arbitrary > functions. > Thanks. I had not been thinking along numeric lines. I can see how these would be useful for working with matrices, vectors, and similar constructs. -- Daniel Stutzbach
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