# n (number of observations)
 35 

# y (responses)
30  58  87 115 120 142 145  33  69 111 156 172 203 203  30  51  75 108 115 139 140  32  62 112 167 179 209 214  30  49 81 125 142 174 177

# t (primary covariate)
118  484  664 1004 1231 1372 1582  118  484  664 1004 1231 1372 1582  118  484  664 1004 1231 1372 1582  118  484  664 1004 1231 1372 1582  118  484  664 1004 1231 1372 1582

# M (number of groups)
 5 

# ngroup (number of observations in each group)
 7 7 7 7 7 

# m (number of parameters in the model)
 3