Description Format References Examples
Data on 102 male and 100 female athletes collected at the Australian Institute of Sport.
This data frame contains the following columns:
(0 = male or 1 = female)
height (cm)
weight (kg)
lean body mass
red cell count
white cell count
Hematocrit
Hemoglobin
input description
body mass index, weight/(height)**2
sum of skin folds
Percent body fat
Sport
S. Weisberg (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Section 6.4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16  ##Load the data
library(ssmn)
data(ais)
attach(ais)
#Set the response y and covariate x
x1 < cbind(1,SSF,Ht)
y < Bfat
##Fits a Skew Scale Mixtures of Normal Distributions to the data
fit.ssmn < ssmn(y, x1, family="sn", method="EM", error = 1e6, maxit=1000, show.envelope=FALSE)
#Show envelope
theta < c(fit.ssmn$beta,fit.ssmn$sigma2,fit.ssmn$lambda)
envel(y,x1,theta,family="sn",alpha=0.05)

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