apple

Data loads lazily. Type data(apple) 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

apple function

A data.frame with 660 rows and 17 variables:<ul>
<li>id. respondent identifier</li>
<li>educ. years schooling</li>
<li>date. date: month/day/year</li>
<li>state. home state</li>
<li>regprc. price of regular apples</li>
<li>ecoprc. price of ecolabeled apples</li>
<li>inseason. =1 if interviewed in Nov.</li>
<li>hhsize. household size</li>
<li>male. =1 if male</li>
<li>faminc. family income, thousands</li>
<li>age. in years</li>
<li>reglbs. quantity regular apples, pounds</li>
<li>ecolbs. quantity ecolabeled apples, lbs</li>
<li>numlt5. # in household younger than 5</li>
<li>num5_17. # in household 5 to 17</li>
<li>num18_64. # in household 18 to 64</li>
<li>numgt64. # in household older than 64</li>
</ul>

apple: apple

Description

Usage

Arguments

Format

Examples