R Dataset / Package wooldridge / rdchem

Submitted by pmagunia on March 9, 2018 - 1:06 PM
Dataset License
GNU General Public License v2.0
Attachment Size
dataset-36610.csv 3.6 KB
Documentation

rdchem

Description

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

Usage

data(rdchem)

Format

A data.frame with 32 rows and 8 variables:

  • rd. R&D spending, millions

  • sales. firm sales, millions

  • profits. profits, millions

  • rdintens. rd as percent of sales

  • profmarg. profits as percent of sales

  • salessq. sales^2

  • lsales. log(sales)

  • lrd. log(rd)

Source

https://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781111531041

Examples

 str(rdchem)
--

Dataset imported from https://www.r-project.org.

Documentation License
GNU General Public License v2.0

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