Hi
I am currently conducting spatial panel model analysis using the xsmle package. While SAR and SDM panel models run smoothly, I consistently encounter the following error in the SEM Panel model: "Hessian is not negative semidefinite."
I would appreciate any help in understanding the cause of this issue and finding potential solutions. Could you provide insights into why this error might be occurring? Additionally, if you have any suggestions on how to address this, I would be grateful for your input.
Thank you.
I am currently conducting spatial panel model analysis using the xsmle package. While SAR and SDM panel models run smoothly, I consistently encounter the following error in the SEM Panel model: "Hessian is not negative semidefinite."
I would appreciate any help in understanding the cause of this issue and finding potential solutions. Could you provide insights into why this error might be occurring? Additionally, if you have any suggestions on how to address this, I would be grateful for your input.
Thank you.
