cement

Data loads lazily. Type data(cement) 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

cement function

A data.frame with 312 rows and 30 variables:<ul>
<li>year. 1964-1989</li>
<li>month. 1-12</li>
<li>prccem. BLS ppi for cement</li>
<li>ipcem. industrial prod. index, cement</li>
<li>prcpet. ppi for crude petroleum</li>
<li>rresc. real residential construction</li>
<li>rnonc. real nonres. construction</li>
<li>ip. aggregate index of indus. prod.</li>
<li>rdefs. real defense spending</li>
<li>milemp. military employment</li>
<li>gprc. log(prccem) - log(prccem[_n-1])</li>
<li>gcem. log(ipcem) - log(ipcem[_n-1])</li>
<li>gprcpet. log(prcpet) - log(prcpet[_n-1])</li>
<li>gres. log(rresc) - log(rresc[_n-1])</li>
<li>gnon. log(rnonc) - log(rnonc[_n-1])</li>
<li>gip. log(ip) - log(ip[_n-1])</li>
<li>gdefs. log(rdefs) - log(rdefs[_n-1])</li>
<li>gmilemp. log(milemp) - log(milemp[_n-1])</li>
<li>jan. =1 if month == 1</li>
<li>feb. =1 if month == 2</li>
<li>mar. =1 if month == 3</li>
<li>apr. =1 if month == 4</li>
<li>may. =1 if month == 5</li>
<li>jun. =1 if month == 6</li>
<li>jul. =1 if month == 7</li>
<li>aug. =1 if month == 8</li>
<li>sep. =1 if month == 9</li>
<li>oct. =1 if month == 10</li>
<li>nov. =1 if month == 11</li>
<li>dec. =1 if month == 12</li>
</ul>

cement: cement

Description

Usage

Arguments

Format

Examples