I have formatted my dataset so that it is in the same form as the california_99 dataset, and applied a 1 in the treated column for treated units and a 0 for all other units. However when I run 'setup = panel.matrices(GoodsExports)' it produces an error "Error in panel.matrices(GoodsExports) : There is no variation in treatment status", I was wondering how I can remedy this?
Hi,
I have formatted my dataset so that it is in the same form as the california_99 dataset, and applied a 1 in the treated column for treated units and a 0 for all other units. However when I run 'setup = panel.matrices(GoodsExports)' it produces an error "Error in panel.matrices(GoodsExports) : There is no variation in treatment status", I was wondering how I can remedy this?