[statnet_help] GWESP drops overtime using STERGM fitted with edges dissolution approximation method

[Lin Zhu]

Dear Statnet group,

Hope you are all doing well.

As part of our modeling work, we are struggling to fit a STERGM to cross-sectional + duration data that includes a GWESP target. We originally used the edges dissolution approximation method, and see GWESP drop precipitously in simulated networks over time (we are using monthly time steps). We have not been able to get the model to finish running using the full STERGM (without the approximation). Increasing simulation time horizon by using a smaller timestep (eg., daily) results in an improved fit using the approximation method, but this approach would present computational challenges if we needed to run the simulation at daily timesteps.

Do you have suggestions on how we could address this issue (maybe changes to settings that would help the full STERGM to finish, or workarounds for the approximation)?

Thank you so much.

Best,
Lin


Lin Zhu  |  Research Engineer
Department of Health Policy | School of Medicine
Center for Health Policy | Freeman Spogli Institute for International Studies
Stanford University
615 Crothers Way
Encina Commons, Office 113
Stanford, CA 94305-6006
650.736.8139 | linzhu1 at stanford.edu
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