card

Data loads lazily. Type data(card) into the console.

datasets

Economics students new to both econometrics and R may find the
simultaneous introduction to both challenging. In particular, the process of
loading and preparing data before building one's first model can present
challenges. The `wooldridge` data package aims to lighten the task by loading
any data set from the text into the current working environment with a single command.
The package contains documentation for each set and all data has been
compressed to 62.73% of its original size. Just install the package, load it,
and use the `data()` function to call the data set you need to work with.
In addition, a wooldridge-vignette illustrates solutions to examples from
each chapter of the text, offering a relevant introduction to econometric
modelling with R. The vignette also includes an Appendix to helpful resources
about using R for econometrics. Note: Data sets are from the 5th edition
(Wooldridge 2013, ISBN-13:978-1-111-53104-1), and are compatible with others.

Justin Shea

wooldridge

105 Data Sets from "Introductory Econometrics: A Modern
Approach" by Jeffrey M. Wooldridge

card function

A data.frame with 3010 rows and 34 variables:<ul>
<li>id. person identifier</li>
<li>nearc2. =1 if near 2 yr college, 1966</li>
<li>nearc4. =1 if near 4 yr college, 1966</li>
<li>educ. years of schooling, 1976</li>
<li>age. in years</li>
<li>fatheduc. father's schooling</li>
<li>motheduc. mother's schooling</li>
<li>weight. NLS sampling weight, 1976</li>
<li>momdad14. =1 if live with mom, dad at 14</li>
<li>sinmom14. =1 if with single mom at 14</li>
<li>step14. =1 if with step parent at 14</li>
<li>reg661. =1 for region 1, 1966</li>
<li>reg662. =1 for region 2, 1966</li>
<li>reg663. =1 for region 3, 1966</li>
<li>reg664. =1 for region 4, 1966</li>
<li>reg665. =1 for region 5, 1966</li>
<li>reg666. =1 for region 6, 1966</li>
<li>reg667. =1 for region 7, 1966</li>
<li>reg668. =1 for region 8, 1966</li>
<li>reg669. =1 for region 9, 1966</li>
<li>south66. =1 if in south in 1966</li>
<li>black. =1 if black</li>
<li>smsa. =1 in in SMSA, 1976</li>
<li>south. =1 if in south, 1976</li>
<li>smsa66. =1 if in SMSA, 1966</li>
<li>wage. hourly wage in cents, 1976</li>
<li>enroll. =1 if enrolled in school, 1976</li>
<li>KWW. knowledge world of work score</li>
<li>IQ. IQ score</li>
<li>married. =1 if married, 1976</li>
<li>libcrd14. =1 if lib. card in home at 14</li>
<li>exper. age - educ - 6</li>
<li>lwage. log(wage)</li>
<li>expersq. exper^2</li>
</ul>

card: card

Description

Usage

Arguments

Format

Examples