From help fvvarlist
:
You can specify the base level of a factor variable by using the
ib.
operator.
题
When I run the following regression,
reg subject inSchool#treatment#male
I get comparisons in reference to inSchool=0, treatment=0, and male=0, but I would like to be able to change the reference variables.
For example I would like to have all the comparisons done in reference to inSchool=1,treatment=0, and male=1.
I have used the following characteristic command but it doesn't seem to have an effect.
char inSchool[omit] 1 male[omit] 1
Am I having a syntax issue or is there no way to choose which variable to omit using #
Thanks in advance!
解决方案
From help fvvarlist
:
You can specify the base level of a factor variable by using the
ib.
operator.