[Rsiena-help] siena08 - combine projects

[Philippe Sulger]

Dear RSiena Users

I try to perform a meta-analysis with siena08 as for instance in 
RscriptMultipleGroups.R

# Combine the three projects.
        meta.146 <- siena08(model1.1, model4.1, model6.1,
                             projname = "meta146")

I get the message (in my project): 

Error in optimize(function(mu) profdev.mu(mu, x, se)$objective, range(x)) : 
  "'xmin' not less than 'xmax'"

However, once I exclude covariates (I have only constant covariates/two waves per project) and dependent 
(behavior) variables siena08 works. I.e., once I only focus on network dynamics
in the projects to be combined with siena08, the combination works. 

I have missing values in the behavior data as well as
in the covariates; does this have an influence?

Thank you for your help.

Best,
Philippe



 		 	   		  
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