Alex Gutteridge
12/5/2007 1:27:00 AM
On 5 Dec 2007, at 00:56, Surjit Nameirakpam wrote:
> How to calculate variance on the elements of an Array
*Shameless plug and probably overkill if you just want the variance*
RSRuby allows you to use any R function, including the built-in
variance function ('var'). It's available as a gem.
irb(main):002:0> require 'rsruby'
=> true
irb(main):004:0> RSRuby.instance.var([1,2,3])
=> 1.0
irb(main):006:0> RSRuby.instance.var(RSRuby.instance.rnorm(10))
=> 0.812117410016217
irb(main):008:0> RSRuby.instance.var(RSRuby.instance.rnorm(100))
=> 0.960224242747171
Alex Gutteridge
Bioinformatics Center
Kyoto University