Displaying 3 results from an estimated 3 matches for "moltiplication".
2004 Feb 10
0
Evaluating R. I need to open "a dataset".
Hello,
Our Statistics Group is evaluating the use of R for the elaboration of
some index.
We have some datasets sas and we would like to evaluate performance in
the elaborations of mean, percentile, Gini index of a population and of
a survey sample.
I need to open "a dataset". Currently I've understood that I've to
follow a code sequence like this:
alfa <- {a
2004 Feb 11
0
The use of R for the elaboration of some index
Hello,
Our Statistics Group is evaluating the use of R for the elaboration of
some index.
We have some datasets sas (120 Mb) and we would like to evaluate
performance in the elaborations of mean, percentile, Gini index of a
population and of a survey sample.
I need to open "a dataset". Currently I've understood that I've to
follow a code sequence like this:
alfa <- {a
2006 Mar 18
1
listing nodes in paths
...0 0 1 0 0 0 0 0
[5,] 0 0 1 0 0 0 0 0
[6,] 1 1 0 0 0 0 0 0
[7,] 0 0 0 1 1 0 0 0
[8,] 0 0 0 0 0 1 1 0
My interest is the numberof path between (8) and (1). Using a
standard matrix moltiplication I can see I have one pathe of length 2
and two paths of length 4.
(paths of length 2)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
[1,] 0 0 0 0 0 0 0 0
[2,] 0 0 0 0 0 0 0 0
[3,] 0 0 0 0 0 0 0 0
[4,] 1 0 0 0...