This page list the data sets used in the book Smoothing Spline ANOVA Models by Chong Gu (2002, Springer-Verlag). Most of the data sets are already included in base R or various packages. The format of the data is sourceable R dump.

Buffalo Snowfall (section 6.5.1): buffalo
CDC Blood Transfusion (sections 1.4.2, 6.5.3, 6.6.4): aids
EPA Lake Acidity (sections 1.4.1, 4.4.4): LakeAcidity (gss)
Gastric Cancer (section 7.3.1): gastric
Los Angeles Ozone (section 3.7.2): ozone (gss)
Nitrogen Oxides (section 3.7.1): nox (gss)
Old Faithful Eruption (sections 5.5.1, 6.5.2): faithful (base R)
Stanford Heart Transplant (sections 1.4.3, 7.3.2, 7.4.2, 7.5.5): stan (gss)
US Penny Thickness (section 6.7.2): penny
Weight Loss (section 4.3.4): wtloss (MASS)
Wisconsin Epidemiological Study of Diabetic Retinopathy (section 5.5.3): wesdr (gss)
Yearly Sunspots (section 5.5.2): sunspot.year (ts)