SE for marginal mean

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
38/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
r
Domain
data

Research direction

Start by locating the marginal mean standard-error calculation and the uses of cvovG and vcovHC. Check how treatment-by-covariate interactions and difference contrasts are handled, then confirm that marginal means always use cvovG and verify the affected calculations with the project's existing checks.

Written by the indexing model from the issue text.

Description

SE for marginal mean should always be calculated by cvovG, because vcovHC won't work (vcovHC only works for "difference" contrast and linear model without treatment by covariate interactions). This needs to be fixed as discussed in our meeting today.

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Dominant language
R
Stars
14
Forks
4
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