head(data_Kremelburg_2011)
# \donttest{
LOGISTIC_REGRESSION(data = data_Kremelburg_2011, DV='OCCTRAIN',
hierarchical=list( step1=c('AGE'), step2=c('EDUC','REALRINC')) )
COUNT_REGRESSION(data=data_Kremelburg_2011, DV='OVRJOYED',
forced=c('AGE','EDUC','REALRINC','SEX_factor'))
# }
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