On this R-data statistics page, you will find information about the rdchem data set which pertains to rdchem. The rdchem data set is found in the wooldridge R package. You can load the rdchem data set in R by issuing the following command at the console data("rdchem"). This will load the data into a variable called rdchem. If R says the rdchem data set is not found, you can try installing the package by issuing this command install.packages("wooldridge") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the rdchem R data set. The size of this file is about 3,683 bytes.

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)

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