How can I recover matrix V and vector of weights W after running synth_runner?

[Esteban Colla]

After running synth I can recover V and W using e(V_matrix) and e(W_weights). However, these matrices are not available after running synth_runner. How can I recover them?

[William Lisowski]

The Description section of the output of help synth_runner tells us

synth_runner is designed to accompany synth but not to supersede it. For more details about single estimations (variable weights, observation weights, covariate balance, and synthetic control outcomes when there are multiple time periods), use synth directly.

That seems a definitive statement from the authors of synth_runner which, like synth, is a user-written extension to Stata.

[Esteban Colla]

OK. I need to show the weights W and the matrix V as part of my results, so I will use synth. I will try to replicate the results using synth_runner, without training and validating the model (that is, I will have to set training_propr(0)).