[statnet_help] ERGM constraints and subgroups

[Steven M. Goodreau]

Hi Sarah, based on your description it sounds like all you need is a 
term in your model: nodematch("village")

Best,

Steve



On 8/1/2022 2:26 PM, Sarah Piombo wrote:

> Hi,

>

> I have a question about the best way to specify ERGM constraints for 

> my data.

> I have a network of ~1500 nodes and 8500 edges.

> The individuals live in 8 different villages, ~7000 edges are within 

> villages while 1500 edges are between villages.

> I initially used a block diagonal model to only allow edges within the 

> same village and this worked great, but without that constraint I have 

> difficulty getting the model to converge with dyad dependent terms.

> Ideally I would like the between village ties to be possible but less 

> probable than the within village ties.

> 1. What is the best way to do this? Is it possible with the blocks 

> operator or another approach?

> 2. Any other suggestions or considerations (should I consider using 

> ergm.multi?)

> Any help or advice would be much appreciated. Thank you!

>

> -- 

> *Sarah Piombo, PhD(c), MPH*

> Doctoral Candidate

>

> Department of Population and Public Health Sciences

>

> Keck School of Medicine | University of Southern California

>

> https://sarahpiombo.com

>

>

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-- 
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