jtrain3: jtrain3

Description Usage Format Used in Text Source Examples

Description

Wooldridge Source: R.H. Dehejia and S. Wahba (1999), “Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs,” Journal of the American Statistical Association 94, 1053-1062. Professor Sergio Firpo, at the University of British Columbia, has used this data set in his recent work, and he kindly provided it to me. This data set is a subset of that originally used by Lalonde in the study cited for JTRAIN2.RAW. Data loads lazily.

Usage

1
data('jtrain3')

Format

A data.frame with 2675 observations on 20 variables:

Used in Text

pages 340-341, 480-481

Source

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

Examples

1

Example output

'data.frame':	2675 obs. of  20 variables:
 $ train  : int  1 1 1 1 1 1 1 1 1 1 ...
 $ age    : int  37 30 27 33 22 23 32 22 19 21 ...
 $ educ   : int  11 12 11 8 9 12 11 16 9 13 ...
 $ black  : int  1 1 1 1 1 1 1 1 1 1 ...
 $ hisp   : int  0 0 0 0 0 0 0 0 0 0 ...
 $ married: int  1 0 0 0 0 0 0 0 0 0 ...
 $ re74   : num  0 0 0 0 0 0 0 0 0 0 ...
 $ re75   : num  0 0 0 0 0 0 0 0 0 0 ...
 $ unem75 : int  1 1 1 1 1 1 1 1 1 1 ...
 $ unem74 : int  1 1 1 1 1 1 1 1 1 1 ...
 $ re78   : num  9.93 24.91 7.51 0.29 4.06 ...
 $ agesq  : int  1369 900 729 1089 484 529 1024 484 361 441 ...
 $ trre74 : num  0 0 0 0 0 0 0 0 0 0 ...
 $ trre75 : num  0 0 0 0 0 0 0 0 0 0 ...
 $ trun74 : int  1 1 1 1 1 1 1 1 1 1 ...
 $ trun75 : int  1 1 1 1 1 1 1 1 1 1 ...
 $ avgre  : num  0 0 0 0 0 0 0 0 0 0 ...
 $ travgre: num  0 0 0 0 0 0 0 0 0 0 ...
 $ unem78 : int  0 0 0 0 0 1 0 0 0 0 ...
 $ em78   : int  1 1 1 1 1 0 1 1 1 1 ...
 - attr(*, "datalabel")= chr ""
 - attr(*, "time.stamp")= chr "25 Jun 2011 23:03"
 - attr(*, "formats")= chr  "%9.0g" "%9.0g" "%9.0g" "%9.0g" ...
 - attr(*, "types")= int  251 251 251 251 251 251 254 254 251 251 ...
 - attr(*, "val.labels")= chr  "" "" "" "" ...
 - attr(*, "var.labels")= chr  "=1 if in job training" "in years, 1977" "years of schooling" "=1 if black" ...
 - attr(*, "version")= int 10

wooldridge documentation built on June 24, 2021, 9:07 a.m.