I am running a logit regression on some data. My dependent variable is binary as are all but one of my independent variables.
When I run my regression, stata drops many of my independent variables and gives the error:
"variable name" != 0 predicts failure perfectly
"variable name" dropped and "a number" obs not used
I know for a fact that some of the variables dropped don't predict failure perfectly. In other words, the dependent variables can take on the value 1 for either the value 1 or 0 of the independent variable.
Why is this happening and how can I resolve it?