What is the equivalent of column.prods() from S in R?
On Sat, Nov 28, 2009 at 11:00 PM, David Winsemius
<dwinsemius at comcast.net> wrote:
On Nov 28, 2009, at 11:28 PM, Peng Yu wrote:
On Mon, Nov 9, 2009 at 8:35 PM, David Winsemius <dwinsemius at comcast.net> wrote:
On Nov 9, 2009, at 8:43 PM, Peng Yu wrote:
Chambers' book Statistical Models in S mentioned 'column.prods()'. But I don't find it in R. I'm wondering if there is an equivalent in R?
??rowProds ??colProds (They are in both fUtilities and timeSeries.)
Are you sure that colProds() is equivalent to column.prods()? It seems that column.prods() should be a very basic function in S, but I have to load a package in order to call colProds(). I don't see how to construct a matrix give terms as mentioned in the book. Would you please give me some examples?
Page numbers? Specifics? ....something to go on?
As is mentioned in the appendix of the book, it is on page 38.