Dataset from a study on hookworm prevalence and intensity in 1993
A dataset from a cross-sectional survey in 1993 examining hookworm infection
data(HW93)
A data frame with 637 observations on the following 6 variables.
ida numeric vector for personal identification number
epga numeric vector for eggs per gram of faeces
agea numeric vector for age in years
shoea factor for shoe wearing with levels no yes
intensea factor for intensity of infection in epg. with levels 0 1-1,999 2,000+
agegra factor for age group with levels <15 yrs 15-59 yrs 60+ yrs
data(HW93) des(HW93) .data <- HW93 .data$order.intense <- ordered(.data$intense) ord.hw <- polr(ordered(intense) ~ agegr + shoe, data=.data) summary(ord.hw) ordinal.or.display(ord.hw)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.