On this Picostat.com statistics page, you will find information about the traffic1 data set which pertains to traffic1. The traffic1 data set is found in the wooldridge R package. You can load the traffic1 data set in R by issuing the following command at the console data("traffic1"). This will load the data into a variable called traffic1. If R says the traffic1 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 traffic1 R data set. The size of this file is about 3,516 bytes.

traffic1

Description

Data loads lazily. Type data(traffic1) into the console.

Usage

data(traffic1)

Format

A data.frame with 51 rows and 13 variables:

• state.

• admn90. =1 if admin. revoc., '90

• admn85. =1 if admin. revoc., '85

• open90. =1 if open cont. law, '90

• open85. =1 if open cont. law, '85

• dthrte90. deaths per 100 mill. miles, '90

• dthrte85. deaths per 100 mill. miles, '85

• speed90. =1 if 65 mph, 1990

• speed85. =0 always

• cdthrte. dthrte90 - dthrte85

• cadmn. admn90 - admn85

• copen. open90 - open85

• cspeed. speed90 - speed85

Source

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

Examples

 str(traffic1)

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