balanced design package?
On 11/21/2013 08:41 AM, Dimitri Liakhovitski wrote:
Dear everybody, I have 20 levels of a factor. I want to create 1000 combinations of 6 different levels of that factor so that each level is repeated about the same number of times (across 100 combinations) and so that the number of times level X is combined with level Y is also about the same (across 1000 combinations). So, it's an experimental design question. I don't think I can use algDesign for that.
Hi Dimitri, This is but a guess, but might help: combn(20,6)[,seq(1,38000,by=38)] Jim