Open tricaudc opened 5 years ago
Hi @tricaudc, did you find a solution to your problem?
struggle with same question, it does not work in multiple treated group
Sorry just seeing this, I did not find the solution unfortunately
On Wed, Oct 5, 2022 at 9:29 AM liqizheng0328 @.***> wrote:
struggle with same question, it does not work in multiple treated group
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Hi! Does anyone have a solution for this issue? @tricaudc @sannanphan @liqizheng0328 @bquistorff @janvavra That would help me out a lot :)
Hi! Does anyone have a solution for this issue? @tricaudc @sannanphan @liqizheng0328 @bquistorff @janvavra That would help me out a lot :)
I suggest that you use gsynth (Yiqing Xu, 2017) package in r
If there's a reproducible example, that would help diagnose the issue. It's likely caused by a limit internal to Stata numlists (ref).
I think this error is from having too many controls to choose from. I resolved it by limiting my sample through dropping very dissimilar potential control units.
Dear Brian,
Thanks for the very useful synth_run package. I am using it on Stata (Stata version: 15.1 MP). My setting is the following: I have a balanced panel consisting of 16,362 units of which 1,297 are treated and 15,065 are control and I am following them over a period of 15 years (from 2004 to 2018). The treatment period begins in 2010. I am using 16 predictor variables. Note that the outcome variable I am considering is never missing.
When running the code I obtain the following error: "Error estimating treatment effect for unit 1075". After reading your answer in stackoverflow (https://stackoverflow.com/questions/48552687/error-estimating-treatment-effects-synth-runner), I used "trace" and recover the issue, the error message concerning this unit is the following: "uno() invalid -- invalid numlist has too many elements".
Do you know how I could solve this issue? Would it imply reducing my control group first, but then by how much?
Thanks in advance for your help
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