diabdata {robmixglm} | R Documentation |
Diabetes data
Description
Data from Heritier et al (2009), originally from Harrell (2001, p379). This data was from a study of the prevalence of cardiovascular risk factors such as obesity and diabetes for African Americans. (Willems et al, 19997) Data was available for 403 subjects screened for diabetes, reduced to 372 after removal of cases with missing data.
Usage
diabdata
Format
A data frame with 372 observations on the following 8 variables.
glyhb
Glycosated haemoglobin (values above 7.0 are usually taken as a positive diagnosis of diabetes)
age
age in years
gender
male or female
bmi
body mass index in kg/m^2
waisthip
ratio of waist to hip measurement
frame
body frame, small, medium or large
stab.glu
glucose
location
location, Buckingham or Louisa
Source
Heritier et al (2009)
References
Harrell, F.E. (2001). Regression Modeling Strategies: With Applications to Linear Models, Logistic Regression and Survival Analysis. Springer.
Heritier, S., Cantoni, E., Copt, S. and Victoria-Feser, M-P (2009). Robust Methods in Biostatistics. Wiley.
Willems, J.P., Saunders, J.T., Hunt, D.E. and Schorling, J.B. (1997) Prevalence of coronary heart disease risk factors among rural blacks: A community-based study. Southern Medical Journal, 90:814-820.
Examples
diabdata.robustmix <- robmixglm(glyhb~age+gender+bmi+waisthip+frame+location,
data = diabdata, cores = 1)
summary(diabdata.robustmix)
diabdata.step <- step(diabdata.robustmix, glyhb~age+gender+bmi+waisthip+frame+location, cores = 1)
summary(diabdata.step)