tobin {survival} | R Documentation |
Tobin's Tobit data
Description
Economists fit a parametric censored data model called the ‘tobit’. These data are from Tobin's original paper.
Usage
tobin
data(tobin, package="survival")
Format
A data frame with 20 observations on the following 3 variables.
- durable
Durable goods purchase
- age
Age in years
- quant
Liquidity ratio (x 1000)
Source
J Tobin (1958), Estimation of relationships for limited dependent variables. Econometrica 26, 24–36.
Examples
tfit <- survreg(Surv(durable, durable>0, type='left') ~age + quant,
data=tobin, dist='gaussian')
predict(tfit,type="response")
[Package survival version 3.8-3 Index]