In the summ functions, it's not clear from the documentation that one must set robust = HC1, HC2, or HC3 in order to use the cluster. If you input HC4 you get a warning telling you to use a lower HC, but if you don't realize you need to set robust in the first place, then cluster will fail silently and you'll only know it wasn't invoked if you compared the results to a non-clustered model. It would be great if you could add a line to the documentation that says this explicitly, add a warning or error when cluster is used without an appropriate robust setting, and also add an example that uses cluster to the vignettes or examples. Thanks!
In the
summ
functions, it's not clear from the documentation that one must setrobust
= HC1, HC2, or HC3 in order to use thecluster
. If you inputHC4
you get a warning telling you to use a lower HC, but if you don't realize you need to setrobust
in the first place, thencluster
will fail silently and you'll only know it wasn't invoked if you compared the results to a non-clustered model. It would be great if you could add a line to the documentation that says this explicitly, add a warning or error whencluster
is used without an appropriaterobust
setting, and also add an example that uses cluster to the vignettes or examples. Thanks!