1dSEM: connection directionality

Hello everyone,

When I run 1dSEM, I see a line saying “Connection directionality is from column to row” (column and row of Theta matrix). However, if I understand and remember things correctly, directionality is the other way around - row to column- for 1dGC or 1dSVAR. If this is true, is there any reason for the difference?

Thanks for your helps.

I’m not sure about the R implementations. Gang wrote those, and he will likely respond when he returns from travel. You can verify the directions against the published Bullmore results which were analyzed with another package completely. See the example here: