search for: simclust

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2005 Aug 04
1
Where the error message comes from?
...Below is the program that simulates data from one way random effects model and then computes normality and bootstrap confidence interval for Cost-Effectiveness Ratio. I have pasted the message in blue. I appreciate any guidance in figuring it out. Ashraf #### SIMULATING DATA ##### SimClust <- function(k,m,mu,sb2,sw2,r,z) { #set.seed(1234) # k = Number of groups # m = Group size # mu = Group mean, same for all groups # sb2 = Between group variance # sw2 = Within group variance # r = Corelation coefficient # z = standard normal variate cutoff value for binomial...
2007 Feb 02
1
Snow Package and R: Exported Variable Problem
...hers. I start the simulation on one node, create a cluster of several nodes, load my custom package and snow on all of them, use clusterExport(cl, "x1") to export the variable x1(among other variable I need), then I call my simulation on the cluster using clusterApplyLB(cl, 2:S, simClust) where cl is the cluster and S is a constant defined above as 500. Using print statements (since snow, or R for that matter, has next to no ability to debug) I found that the error cropped up in this statement: theta6 = optim(c(0,0,0,0,0,0,.2), loglikelihood, scrore6, method = "CG&q...