ivreg: ivreg

Description Usage Arguments Details Value

Description

Estimate IV models

Usage

1
2
ivreg(formula, instruments, data, subset, weights, na.action,
  contrasts = NULL, method = "tsls", start = NULL, ...)

Arguments

formula

an object of class "formula" (or one that can be coerced to that class): a symbolic description of the model to be fitted. The details of model specification are given under <e2><80><98>Details<e2><80><99>.

instruments

an object of class "formula" (or one that can be coerced to that class): a symbolic description of the instruments to be used.

data

an optional data frame, list or environment (or object coercible by as.data.frame to a data frame) containing the variables in the model. If not found in data, the variables are taken from environment(formula), typically the environment from which lm is called.

subset

an optional vector specifying a subset of observations to be used in the fitting process.

weights

an optional vector of weights to be used in the fitting process. Should be NULL or a numeric vector. If non-NULL, weighted least squares is used with weights weights (that is, minimizing sum(w*e^2)); otherwise ordinary least squares is used. See also <e2><80><98>Details<e2><80><99>,

na.action

a function which indicates what should happen when the data contain NAs. The default is set by the na.action setting of options, and is na.fail if that is unset. The <e2><80><98>factory-fresh<e2><80><99> default is na.omit. Another possible value is NULL, no action. Value na.exclude can be useful.

contrasts

an optional list. See the contrasts.arg of model.matrix.default.

method

the method to be used.

start

initial values. Needed only when methods is different than "tsls" or "gmm"

...

other arguments

Details

Details

Value

NULL


gragusa/ase documentation built on May 17, 2019, 8:18 a.m.