search for: unik

Displaying 3 results from an estimated 3 matches for "unik".

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2012 Aug 28
5
return first index for each unique value in a vector
I would like to efficiently find the first index of each unique value in a very large vector. For example, if I have a vector A<-c(9,2,9,5) I would like to return not only the unique values (2,5,9) but also their first indices (2,4,1). I tried using a for loop with which(A==unique(A)[i])[1] to find the first index of each unique value but it is very slow. What I am trying to do is easily
2006 Aug 18
1
User and sessions
When tracking a user is it correct to use the session user and id ? In other words if a user logs in and wants to display all of their records would one of the find conditions be session[id] ? TIA Stuart
2004 Jan 29
5
Question(s) for the programming gurus
Hi all. I''m quite new to the concepts of the "traffic control" framework, and I''ve got a programming-related question. Hopefully someone has the answer... Is it possible, either for the device driver itself or for a userspace program, to get information about how many packets are currently queued for a given network interface? Let''s describe it a little