[R] Brillouin index

Dear colleagues. I wonder if anybody knows about a procedure in R to calculate the Brillouin Diversity index. I searched the net but did not find anything about it. Thanks a lot for any help Best, Philipp *** Prof. Dr. Philipp Fischer Head of

Re: [R] Brillouin index

It's a pretty simple formula, according to the sources I found. Here's a function that looks right to me, but I have no independent calculation with which to check it. (no guarantees!) Hb - function(ns) { N - sum(ns) (lfactorial(N) - sum(lfactorial(ns)))/N } ns - c(3,5,2,8) Hb(ns) [1]

Re: [R] Brillouin index

MacQueen, Don macqueen1 at llnl.gov writes: It's a pretty simple formula, according to the sources I found. Here's a function that looks right to me, but I have no independent calculation with which to check it. (no guarantees!) Hb - function(ns) { N - sum(ns) (lfactorial(N) -