Weights option (as in gsynth)

[pbritteon]

Hi Yiqing and team

I know you have mentioned that you are still in the process of developing this package (which is great by the way)...

I was just wondering whether you planned to add a weights option (like you have in the gsynth command) so that you can calculate the weighted average effect of a policy across treated units with unequal population sizes (e.g. when your data is aggregated at an area level)?

Many thanks, Phil

[xuyiqing]

That seems fairly easy to do. We'll write it down. Thank you so much, Phil!

On Wed, May 26, 2021 at 9:14 AM pbritteon @.***> wrote:

Hi Yiqing and team

I know you have mentioned that you are still in the process of developing this package (which is great by the way)...

I was just wondering whether you planned to add a weights option (like you have in the gsynth command) so that you can calculate the weighted average effect of a policy across treated units with unequal population sizes (e.g. when your data is aggregated at an area level)?

Many thanks, Phil

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[pbritteon]

Hi Yiqing

Just wondering whether you have had chance to add this feature since my last message? I am using gsynth in a project that requires weightings but would like to use fect to take advantage of its different features.

Many thanks, Phil

[xuyiqing]

Thank you for the nudge! Ziyi, maybe we can incorporate this in this round of revision?

On Tue, Jun 28, 2022 at 7:04 AM pbritteon @.***> wrote:

Hi Yiqing

Just wondering whether you have had chance to add this feature since my last message? I am using gsynth in a project that requires weightings but would like to use fect to take advantage of its different features.

Many thanks, Phil

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-- Yiqing Xu

Assistant Professor Department of Political Science Stanford University https://yiqingxu.org/

[bnglasner]

Just tagging on that it would be very helpful!

[xuyiqing]

Thank you. We're updating it now.

On Tue, Aug 9, 2022 at 8:54 AM bnglasner @.***> wrote:

Just tagging on that it would be very helpful!

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Assistant Professor Department of Political Science Stanford University https://yiqingxu.org/

[jyl19]

Hi Yiqing,

Just wanted to tag along and say that adding in weights would be super helpful!

[xuyiqing]

Thanks for the nudge!

Hi Ziyi,

Will you have time to add it recently?

Best, Yiqing

On Tue, Nov 22, 2022 at 6:54 PM jyl19 @.***> wrote:

Hi Yiqing,

Just wanted to tag along and say that adding in weights would be super helpful!

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-- Yiqing Xu

Assistant Professor Department of Political Science Stanford University https://yiqingxu.org/

[bnglasner]

Hi,

I wanted to see if this had any updates. I am not seeing it in the most recent version.

Thanks!

[lzy318]

Sorry for the delay. Fect now incorporates the option "W" and you can specify the weight variable using that option. In visualization, you can use the command plot(out, weight = TRUE) to visualize the weighted dynamic treatment effects.