sampleSelection-deprecated {sampleSelection} | R Documentation |
These functions are provided for compatibility with older versions of
micEcon
/sampleSelection
only,
and may be defunct as soon as the next release.
tobit2(selection, formula, data = sys.frame(sys.parent()), method="ml", start=NULL, print.level=0, y1=FALSE, z=FALSE, y2=FALSE, x=FALSE, model=FALSE, ...)
selection |
a symbolic formula for the selection equation. The response must be binary variable where 0 corresponds to invisibility of the outcome and 1 to visibility. |
formula |
a symbolic formula for the equation of interest. |
data |
an optional data frame containing the variables in the model. By default the variables are taken from environment(formula), typically the environment from which the function is called |
method |
the method of calculation: Maximum Likelihood (" |
start |
numeric, initial values of the parameters. The order is as follows: gamma (selection equation), beta (the equation of interest), sigma, rho (distribution of the error terms) for tobit2; |
print.level |
information about calculations. 0 – nothing is
printed, bigger numbers give more information.
|
y1, z, y2, x, model |
logicals. If TRUE the corresponding components of the fit (the selection response, the selection model matrix, the equation response, the equation model matrix and both model frames) are returned. |
... |
further arguments to the maximisation algorithm,
see |
The original help page for these functions is often
available at help("oldName-deprecated")
(note the quotes).
Function tobit2
are for historical
compatibility with old versions of micEcon
/sampleSelection
.
Use selection
instead.