Re: permutation

[sbackwards@comcast.net (SD Chasalow)]

Larisa,

 

If you really DO want to do this in SPLUS, you might try out function permn in my combinat library section:

 

http://www.dpw.wau.nl/pv/pub/chasalow/S/win/combinat/

 

or  the R port of the same name at CRAN.

 

But as mentioned, this will produce a very big object (if it doesn't run out of memory first), and likely will take a very long time.

 

Cheers,

Scott

 

Scott Chasalow

Statistical Genetics and Biomarkers

Bristol-Myers Squibb

 

Dear All,

I have a seemingly easy question.  I need to create a matrix consisting of all possible permutations of the following vector:

0.5  1.0  1.5  2.0  3.0  4.0  5.0  6.0  8.0 10.0 12.0 16.0

I know that "sample" function with (replace=F) will generate a permutation, however, I need all possible permutations.

Thank you for your help.

Larisa