Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: dropped groups in xtlogit fixed effects

Subject   st: dropped groups in xtlogit fixed effects
Date   Thu, 01 Apr 2010 14:13:07 +0100

Dear Statalisters,

I want to use a logit regression on panel data with country fixed effects, therefore I am using xtlogit with fe at the end.

However I am getting two notes that i do not fully understand.

1st, Multiple positive outcomes within groups encountered
2nd, x groups (x obs) dropped becasue of all positive or all negative outcomes

can anybody explain what these mean and if they are a problem? It almost halves my sample which may be a bit of an issue.

I must apologize for my stata ignorance, I am new a stata newby

Many thanks in advance for any help you may be able to offer,


*   For searches and help try:

© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index