nonest outside xtreg

[paulvonhippel]

The -xtreg- command has an undocumented -nonest- option which permits the use of cluster() when the cluster variable is not nested within the panel variable.

Do other xt commands offer a similar option? It appears that xtpoisson, for one, does not.

[Joro Kolev]

Check yourself for the command you are interested in.

But whoever writes the command chooses what options to include there, so undocumented options do not transcend across commands.