model.frame.probit {sampleSelection} | R Documentation |
Return the variables used for estimating a probit model
## S3 method for class 'probit': model.frame( formula, ... )
formula |
object of class probit . |
... |
further arguments passed to other methods
(e.g. model.frame ). |
A data.frame containing all variables used for the estimation.
Arne Henningsen, Ott Toomet otoomet@ut.ee
probit
, and model.frame