Learn R Programming

wooldridge (version 1.1.0)

sleep75: sleep75

Description

Data loads lazily. Type data(sleep75) into the console.

Usage

data(sleep75)

Arguments

Format

A data.frame with 706 rows and 34 variables:

  • age. in years

  • black. =1 if black

  • case. identifier

  • clerical. =1 if clerical worker

  • construc. =1 if construction worker

  • educ. years of schooling

  • earns74. total earnings, 1974

  • gdhlth. =1 if in good or excel. health

  • inlf. =1 if in labor force

  • leis1. sleep - totwrk

  • leis2. slpnaps - totwrk

  • leis3. rlxall - totwrk

  • smsa. =1 if live in smsa

  • lhrwage. log hourly wage

  • lothinc. log othinc, unless othinc < 0

  • male. =1 if male

  • marr. =1 if married

  • prot. =1 if Protestant

  • rlxall. slpnaps + personal activs

  • selfe. =1 if self employed

  • sleep. mins sleep at night, per wk

  • slpnaps. minutes sleep, inc. naps

  • south. =1 if live in south

  • spsepay. spousal wage income

  • spwrk75. =1 if spouse works

  • totwrk. mins worked per week

  • union. =1 if belong to union

  • worknrm. mins work main job

  • workscnd. mins work second job

  • exper. age - educ - 6

  • yngkid. =1 if children < 3 present

  • yrsmarr. years married

  • hrwage. hourly wage

  • agesq. age^2

Examples

Run this code
# NOT RUN {
 str(sleep75)
# }

Run the code above in your browser using DataLab