osterbds {bate} R Documentation

## Computes identified set according to Oster (2019)

### Description

Computes identified set according to Oster (2019)

### Usage

osterbds(parameters, Rmax)


### Arguments

 parameters A vector of parameters that is generated after estimating the short, intermediate and auxiliary regressions. Rmax A real number which lies between Rtilde (R-squared for the intermediate regression) and 1.

### Value

A data frame with three columns:

 Discriminant The value of the discriminant of the quadratic equation that is solved to generate the identified set Interval1 The interval formed with the first root of the quadratic equation Interval2 The interval formed with the first root of the quadratic equation

### Examples

## Load data set
data("NLSY_IQ")

## Set age and race as factor variables
NLSY_IQ$age <- factor(NLSY_IQ$age)
NLSY_IQ$race <- factor(NLSY_IQ$race)

## Collect parameters from the short, intermediate and auxiliary regressions
parameters <- collect_par(
data = NLSY_IQ, outcome = "iq_std",
treatment = "BF_months",
control = c("age","sex","income","motherAge","motherEDU","mom_married","race"),
other_regressors = c("sex","age"))

## Oster's method: bounding sets when Rmax=0.61
osterbds(parameters = parameters, Rmax=0.61)



[Package bate version 0.1.0 Index]