On this R-data statistics page, you will find information about the fertil3 data set which pertains to fertil3. The fertil3 data set is found in the wooldridge R package. You can load the fertil3 data set in R by issuing the following command at the console data("fertil3"). This will load the data into a variable called fertil3. If R says the fertil3 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 fertil3 R data set. The size of this file is about 21,538 bytes.

fertil3

Description

Data loads lazily. Type data(fertil3) into the console.

Usage

data(fertil3)

Format

A data.frame with 72 rows and 24 variables:

• gfr. births per 1000 women 15-44

• pe. real value pers. exemption, $

• year. 1913 to 1984

• t. time trend, t=1,...,72

• tsq. t^2

• pe_1. pe[_n-1]

• pe_2. pe[_n-2]

• pe_3. pe[_n-3]

• pe_4. pe[_n-4]

• pill. =1 if year >= 1963

• ww2. =1, 1941 to 1945

• tcu. t^3

• cgfr. change in gfr: gfr - gfr_1

• cpe. pe - pe_1

• cpe_1. cpe[_n-1]

• cpe_2. cpe[_n-2]

• cpe_3. cpe[_n-3]

• cpe_4. cpe[_n-4]

• gfr_1. gfr[_n-1]

• cgfr_1. cgfr[_n-1]

• cgfr_2. cgfr[_n-2]

• cgfr_3. cgfr[_n-3]

• cgfr_4. cgfr[_n-4]

• gfr_2. gfr[_n-2]

Source

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

Examples

 str(fertil3)

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