
factor
(in constrast with data frames like
Links79Pair
). This dataset is supposed to mimick the dataset provided by the researcher, which typically will not have been converted to a factor
.SubjectTag
variable uniquely identify subjects. For Gen2
subjects, the SubjectTag is identical to their CID (ie, C00001.00 -the
SubjectID assigned in the NLSY79-Children files). However for Gen1
subjects, the SubjectTag is their CaseID (ie, R00001.00), with "00"
appended. This manipulation is necessary to identify subjects uniquely in
inter-generational datasets. A Gen1 subject with an ID of 43 has a
SubjectTag
of 4300. The SubjectTags of her four children remain
4301, 4302, 4303, and 4304.For Gen2, an NLSY79 variable of MathStandardized
is C05801.00.
Afi
and Afm
, values were simplified
(to one value per subject) by Kelly Meredith in Sept 2010.
The variables for height and weight were manipulated in R files available in a repository available to the public. Find the appropriate subfolder, and view the HTML report for more details.
library(NlsyLinks) #Load the package into the current R session.
gen2Outcomes <- subset(ExtraOutcomes79, Generation==2) #Create a dataset of only Gen2 subjects.
#plot(ExtraOutcomes79) #Uncomment to see a large scatterplot matrix.
summary(ExtraOutcomes79)
oldPar <- par(mfrow=c(3,2))
hist(ExtraOutcomes79$Generation)
hist(ExtraOutcomes79$MathStandardized)
hist(ExtraOutcomes79$HeightZGenderAge)
hist(ExtraOutcomes79$WeightZGenderAge)
hist(ExtraOutcomes79$Afi)
hist(ExtraOutcomes79$Afm)
par(oldPar)
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