search for: twin2

...to 2 siblings. I would like to somehow constrain all the sibling correlations (twin-sib and sib-sib) to be the same while allowing the twin-twin correlation to be different. Here is some simulated code: set.seed(5) famdata <- matrix(rnorm(400),ncol=4,dimnames=list(NULL,c("Twin1","Twin2","Sib1","Sib2"))) famdata[runif(100)<.2,3] <- NA #20% of sib 1s are missing famdata[runif(100)<.4,4] <- NA #40% of sib 2s are missing cor(famdata,use="pairwise.complete") <R output> Twin1 Twin2 Sib1 Sib2 Twin1 1.0...

Hi Everyone, I am stack between two identical systems (2U Twin2, 4 nodes, SuperMicro) servers that have the same exact specs except for HDDs. These nodes will all either have Asterisk installed with CentOS or will have Asterisk install in virtual environment. Option 1: *12* x 3.5" HDD (3 HDDs per node) Option 2: *24* x 2.5" HDD (6 HDDs per node) **bo...

...t the matter. Been trying to google a lot, but with no luck. I''ll write here what information I''ve gathered, what I tried and how far I managed to get with this. I include information about my hardware, in case it has something to do with all this. I have one four node SuperMicro twin2 server (2026TT-HiBQRF) with QDR InfiniBand (haven''t bought a switch or managed to get drivers for dom0''s yet, so it''s gigabit ethernet for now). Each node is identical, containing: 1x Intel Xeon E5620, 12GB ddr3, 3x 60GB OCZ Vertex2 ssd and 3x 500 GB Seagate Momentus 7200...